LOCAL CLIMATOLOGICAL DATA Monthly Summary April 2026 Station: Blue Hill Meteorological Observatory Latitude: 42° 12' 44" N Longitude: 71° 06' 53" W Elevation (ground): 635 feet Time Zone: Eastern +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind |Solar | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak |2Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ W | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | a | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | t | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | t | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | s | | e| m | m | e | n | t | n | g | g |8 smk, hz| r| v | w | x | n | n | d | d | r | d | r | d | r | m² | | | | | | | | | | |9 blw snw| | | | | | | | | | | | | | | | 1| 2 | 3 | 4A | 4B | 5 | 6 | 7 | 8 | 9 |10| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18| 19| 20| 21| 22| 23 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |01| 73.0 | 38.4 | 55.7 | 49.6 | 46| 89| 9| 0|.........| 0| 0.00| 0.0| 30.40| 29.84|30.088|12.9| 3.1|146| 32| S| 24| 70| 72 | |02| 38.6 | 34.5 | 36.5 | 35.5 | 34| 94| 28| 0|.........| 0| 0.00| 0.0| 30.58| 30.39|30.518|13.9|13.7| 81| 31|ENE| 23| 93| 43 | |03| 67.9 | 35.3 | 51.6 | 49.1 | 45| 88| 13| 0|.........| 0| 0.00| 0.0| 30.51| 30.05|30.238|11.1| 8.9|202| 32| SW| 23|224| 140 | |04| 58.7 | 35.0 | 46.8 | 46.2 | 41| 82| 18| 0|.........| 0| 0.00| 0.0| 30.40| 30.04|30.264|14.8| 5.8| 84| 39| E| 29| 80| 113 | |05| 55.1 | 36.8 | 45.9 | 45.3 | 43| 93| 19| 0|.........| 0| 0.00| 0.0| 30.26| 29.70|29.893|11.3| 5.9|230| 35|NNW| 22|313| 33 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 49.2 | 32.2 | 40.7 | 41.1 | 26| 57| 24| 0|.........| 0| 0.00| 0.0| 30.14| 29.81|29.949|16.1|15.8|291| 47| W| 35|285| 214 | |07| 49.0 | 29.4 | 39.2 | 36.8 | 28| 70| 26| 0|.........| 0| 0.00| 0.0| 30.45| 30.12|30.210|10.0| 4.0|301| 38| W| 29|308| 132 | |08| 43.1 | 25.5*| 34.3*| 33.7 | 20| 57| 30| 0|.........| 0| 0.00| 0.0| 30.68| 30.44|30.606|10.0| 2.6| 60| 29|NNW| 21|335| 278 | |09| 56.4 | 30.8 | 43.6 | 41.0 | 25| 59| 21| 0|.........| 0| 0.00| 0.0| 30.67| 30.46|30.579|13.3|12.7|197| 38| S| 28|186| 281 | |10| 67.0 | 33.9 | 50.5 | 49.2 | 36| 63| 14| 0|.........| 0| 0.00| 0.0| 30.48| 30.08|30.268|15.0|14.6|203| 38| S| 25|200| 258 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 59.7 | 41.0 | 50.3 | 51.4 | 32| 48| 14| 0|.........| 0| 0.00| 0.0| 30.42| 30.03|30.185|13.3|11.1|311| 36|WNW| 24|313| 275 | |12| 54.3 | 35.3 | 44.8 | 44.2 | 26| 52| 20| 0|.........| 0| 0.00| 0.0| 30.55| 30.35|30.454|10.3| 2.7|151| 30| S| 21|186| 233 | |13| 69.3 | 41.5 | 55.4 | 56.4 | 49| 78| 9| 0|.........| 0| 0.00| 0.0| 30.35| 29.86|30.041|17.1|16.4|207| 45| S| 31|193| 116 | |14| 83.3*| 57.9 | 70.6*| 67.4 | 57| 71| 0| 6|.........| 0| 0.13| 0.0| 30.03| 29.80|29.921|13.6|10.4|228| 50| S| 33|185| 244 | |15| 76.9 | 44.5 | 60.7 | 58.7 | 53| 83| 4| 0|.........| 0| 0.00| 0.0| 29.95| 29.84|29.902|10.2| 1.9| 11| 23| NE| 20| 54| 237 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 69.2 | 45.0 | 57.1 | 55.9 | 52| 87| 8| 0|.........| 0| 0.34| 0.0| 30.02| 29.74|29.863| 8.0| 3.3|115| 45|WNW| 28|307| 202 | |17| 61.5 | 47.0 | 54.3 | 54.0 | 51| 91| 10| 0|.........| 0| 0.11| 0.0| 30.08| 29.76|29.914| 7.9| 5.1| 65| 29|NNW| 25|343| 85 | |18| 48.3 | 41.8 | 45.0 | 45.2 | 44| 95| 20| 0|.........| 0| 0.03| 0.0| 30.18| 29.98|30.098| 9.8| 9.3| 72| 27| E| 20| 93| 93 | |19| 49.1 | 33.8 | 41.4 | 42.0 | 41| 96| 23| 0|.........| 0| 0.12| 0.0| 30.04| 29.74|29.871|10.2| 6.6|287| 37| W| 26|326| 28 | |20| 50.5 | 31.7 | 41.1 | 40.5 | 29| 65| 23| 0|.........| 0| 0.00| 0.0| 30.33| 30.04|30.162|10.7| 8.6|295| 30| W| 21|254| 199 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 49.4 | 30.8 | 40.1 | 39.6 | 22| 52| 25| 0|.........| 0| 0.00| 0.0| 30.40| 30.26|30.327| 9.4| 2.9|130| 34| S| 19|118| 292 | |22| 44.3 | 34.6 | 39.4 | 40.6 | 35| 80| 25| 0|.........| 0| 0.00| 0.0| 30.29| 30.02|30.157|12.6|12.5|190| 33| S| 23|197| 48 | |23| 64.9 | 39.8 | 52.3 | 50.0 | 34| 61| 12| 0|.........| 0| 0.00| 0.0| 30.02| 29.80|29.896|11.8| 4.2|323| 40| NW| 28|314| 293 | |24| | | | | | | | | | | | | | | | | | | | | | | | |25| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |26| | | | | | | | | | | | | | | | | | | | | | | | |27| | | | | | | | | | | | | | | | | | | | | | | | |28| | | | | | | | | | | | | | | | | | | | | | | | |29| | | | | | | | | | | | | | | | | | | | | | | | |30| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1338.7| 856.5|------|------|---|----| 395| 6| Days | 0.73| 0.0| 30.68| 29.70|30.148|11.9| 2.5|203| 50| S| 35|285| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 58.2| 37.2| 47.7 | 46.7 | 38|74.4|----|----|≥.01 Inch 5|91.93| 0.0| 8 | 5 |------|----|----|---| 14 | 6 | 170| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | Season |Snow, Ice | | | | Number of Days | to Date |≥1.0 Inch 0| Greatest in 24 Hours and Dates | Greatest Depth on Ground | +------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice | | Max Temperature | Min Temperature |5721| 6|Thunder 0|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 0.34| 16 | 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 6 | 0 |----|----| Clear 0 Partly Cloudy 0 Cloudy 0 | +--------+---------+--------+--------+----+----+------------------------------------------+ NOTES: Units: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. Column 4A: value is (MAX+MIN) / 2. Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. Columns 7, 8: Degree Days heating base is 65°F, cooling base is 65°F. Data in columns 9, 10, 12 are entered manually by the station observer. Columns 17-18: Resultant wind is calculated by the vector sum of continuous wind observations.OBSERVATIONS AT 3-HOUR INTERVALS April 2026: Blue Hill Meteorological Observatory +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 1 | APR 2 | APR 3 | | | | | |00| 0|29.92| 0.00| 39| 37| 96|15| 14| 16| 0|30.39| 0.00| 39| 35| 88|06| 15| 25| 0|30.51| 0.00| 35| 34| 96|09| 10| 17| |03| 0|29.86| 0.00| 46| 45| 97|21| 19| 27| 0|30.41| 0.00| 36| 35| 95|07| 17| 27| 0|30.44| 0.00| 36| 35| 97|11| 10| 16| |06| 44|29.92| 0.00| 54| 51| 91|21| 16| 22| 7|30.48| 0.00| 35| 34| 96|08| 17| 26| 11|30.37| 0.00| 37| 36| 97|14| 4| 8| |09| 113|30.01| 0.00| 58| 55| 89|22| 12| 16| 63|30.55| 0.00| 35| 34| 96|06| 14| 24| 207|30.33| 0.00| 41| 40| 98|21| 10| 15| |12| 485|30.05| 0.00| 69| 59| 71|25| 4| 8| 120|30.57| 0.00| 35| 34| 93|08| 13| 30| 290|30.22| 0.00| 48| 48| 98|21| 5| 17| |15| 26|30.13| 0.00| 45| 42| 89|07| 20| 32| 65|30.56| 0.00| 35| 33| 94|08| 11| 26| 503|30.11| 0.00| 66| 55| 68|20| 13| 19| |18| 0|30.26| 0.00| 41| 40| 95|06| 14| 21| 0|30.56| 0.00| 35| 33| 94|09| 11| 22| 14|30.08| 0.00| 63| 53| 69|21| 17| 26| |21| 0|30.33| 0.00| 40| 39| 96|08| 11| 17| 0|30.55| 0.00| 35| 33| 94|09| 13| 18| 0|30.07| 0.00| 55| 51| 85|21| 17| 25| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 4 | APR 5 | APR 6 | | | | | |00| 0|30.06| 0.00| 59| 54| 84|23| 16| 27| 0|30.26| 0.00| 37| 35| 92|13| 9| 14| 0|29.83| 0.00| 43| 33| 70|30| 13| 27| |03| 0|30.05| 0.00| 57| 54| 88|25| 14| 19| 0|30.11| 0.00| 37| 36| 95|13| 11| 15| 0|29.83| 0.00| 41| 32| 70|30| 13| 23| |06| 37|30.14| 0.00| 57| 52| 83|31| 12| 20| 21|29.99| 0.00| 39| 38| 97|15| 8| 13| 19|29.89| 0.00| 36| 25| 65|28| 17| 28| |09| 299|30.27| 0.00| 56| 44| 64|07| 12| 16| 120|29.86| 0.00| 44| 44| 97|18| 16| 22| 316|29.92| 0.00| 42| 27| 55|28| 18| 34| |12| 302|30.35| 0.00| 45| 37| 74|09| 21| 27| 65|29.81| 0.00| 52| 51| 97|21| 6| 11| 262|29.92| 0.00| 46| 26| 47|27| 16| 29| |15| 199|30.36| 0.00| 40| 34| 78|09| 19| 28| 46|29.73| 0.00| 55| 55| 98|19| 11| 17| 167|29.92| 0.00| 46| 25| 44|28| 23| 33| |18| 0|30.38| 0.00| 35| 32| 87|10| 14| 23| 0|29.74| 0.00| 53| 52| 98|27| 16| 25| 12|30.01| 0.00| 42| 22| 45|28| 15| 26| |21| 0|30.36| 0.00| 35| 33| 92|11| 12| 19| 0|29.83| 0.00| 45| 39| 81|30| 16| 28| 0|30.12| 0.00| 37| 25| 61|31| 8| 16| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 7 | APR 8 | APR 9 | | | | | |00| 0|30.14| 0.00| 32| 24| 72|34| 4| 6| 0|30.45| 0.00| 30| 20| 67|31| 15| 26| 0|30.64| 0.00| 31| 24| 74|20| 12| 16| |03| 0|30.14| 0.00| 34| 25| 69|15| 6| 9| 0|30.51| 0.00| 27| 17| 67|33| 12| 20| 0|30.63| 0.00| 31| 27| 86|22| 13| 17| |06| 12|30.16| 0.00| 35| 27| 72|13| 7| 10| 23|30.61| 0.00| 26| 16| 67|34| 12| 16| 25|30.66| 0.00| 31| 28| 88|22| 7| 10| |09| 65|30.15| 0.00| 39| 32| 74|14| 12| 24| 649|30.67| 0.00| 35| 18| 50|02| 5| 17| 659|30.66| 0.00| 45| 22| 40|18| 7| 15| |12|1016|30.12| 0.00| 47| 38| 72|31| 11| 16| 867|30.65| 0.00| 39| 18| 43|01| 5| 14| 867|30.59| 0.00| 55| 22| 28|18| 8| 20| |15| 272|30.17| 0.00| 38| 37| 94|31| 9| 13| 575|30.61| 0.00| 42| 21| 42|07| 7| 13| 582|30.54| 0.00| 53| 18| 25|17| 19| 33| |18| 14|30.25| 0.00| 37| 20| 50|29| 19| 29| 14|30.60| 0.00| 38| 21| 49|12| 8| 13| 19|30.51| 0.00| 44| 19| 37|17| 12| 31| |21| 0|30.38| 0.00| 33| 22| 64|30| 14| 24| 0|30.64| 0.00| 32| 23| 67|17| 14| 18| 0|30.49| 0.00| 37| 29| 75|18| 13| 24| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 10 | APR 11 | APR 12 | | | | | |00| 0|30.48| 0.00| 35| 32| 91|21| 14| 17| 0|30.08| 0.00| 49| 32| 53|21| 14| 21| 0|30.42| 0.00| 41| 23| 48|33| 13| 20| |03| 0|30.40| 0.00| 35| 33| 93|20| 16| 21| 0|30.04| 0.00| 49| 39| 67|23| 10| 14| 0|30.44| 0.00| 37| 24| 60|31| 11| 13| |06| 39|30.39| 0.00| 36| 34| 91|22| 15| 20| 32|30.11| 0.00| 49| 41| 76|32| 11| 15| 35|30.50| 0.00| 36| 23| 59|00| 8| 13| |09| 621|30.35| 0.00| 52| 38| 60|20| 8| 16| 656|30.18| 0.00| 51| 33| 50|32| 14| 22| 659|30.54| 0.00| 48| 24| 40|13| 5| 11| |12| 814|30.27| 0.00| 65| 40| 41|20| 9| 18| 867|30.17| 0.00| 58| 32| 37|28| 19| 27| 817|30.50| 0.00| 51| 23| 33|12| 8| 15| |15| 538|30.18| 0.00| 65| 40| 41|17| 20| 31| 584|30.17| 0.00| 59| 30| 32|29| 16| 27| 183|30.43| 0.00| 53| 26| 35|08| 8| 14| |18| 11|30.14| 0.00| 53| 33| 47|18| 17| 32| 18|30.24| 0.00| 54| 26| 34|33| 15| 24| 5|30.40| 0.00| 46| 29| 52|17| 12| 24| |21| 0|30.13| 0.00| 47| 35| 61|21| 15| 24| 0|30.33| 0.00| 45| 26| 47|33| 10| 17| 0|30.39| 0.00| 41| 35| 79|18| 15| 22| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 13 | APR 14 | APR 15 | | | | | |00| 0|30.35| 0.00| 42| 38| 87|18| 14| 25| 0|29.97| 0.00| 61| 55| 81|26| 16| 23| | | | | | | | | | |03| 0|30.24| 0.00| 45| 41| 86|18| 19| 31| 0|29.96| 0.00| 59| 55| 86|26| 16| 22| 0|29.86| 0.00| 60| 58| 93|26| 13| 17| |06| 32|30.16| 0.00| 47| 41| 80|19| 28| 36| 76|30.00| 0.00| 59| 55| 88|26| 10| 15| 84|29.91| 0.00| 60| 57| 93|27| 12| 15| |09| 98|30.09| 0.00| 52| 48| 85|20| 15| 28| 592|30.03| 0.00| 71| 57| 61|28| 14| 19| 381|29.94| 0.00| 70| 58| 65|26| 9| 11| |12| 188|29.98| 0.00| 59| 53| 81|21| 17| 30| 837|29.94| 0.00| 81| 57| 44|26| 11| 16| 733|29.92| 0.00| 66| 53| 63|05| 13| 17| |15| 214|29.88| 0.00| 64| 54| 71|21| 16| 26| 540|29.85| 0.00| 78| 59| 52|19| 20| 35| 309|29.89| 0.00| 67| 56| 68|08| 11| 15| |18| 16|29.88| 0.00| 68| 56| 64|23| 16| 24| 26|29.80| 0.00| 69| 56| 65|17| 19| 36| 26|29.89| 0.00| 47| 45| 92|06| 14| 16| |21| 0|29.96| 0.00| 62| 55| 77|22| 13| 16| 0|29.87| 0.00| 61| 59| 92|17| 7| 9| 0|29.94| 0.00| 45| 44| 96|03| 10| 13| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 16 | APR 17 | APR 18 | | | | | |00| 0|29.92| 0.00| 45| 44| 96|05| 11| 15| 0|29.81| 0.00| 55| 49| 79|34| 24| 38| 0|30.08| 0.00| 47| 46| 95|07| 5| 9| |03| 0|29.97| 0.34| 49| 48| 97|27| 8| 26| 0|29.78| 0.00| 55| 52| 88|34| 8| 10| 0|30.05| 0.00| 48| 46| 95|06| 13| 17| |06| 25|29.92| 0.00| 49| 48| 97|02| 7| 8| 5|29.84| 0.06| 54| 52| 90|22| 9| 11| 19|30.15| 0.00| 48| 47| 97|06| 13| 21| |09| 250|29.94| 0.00| 52| 51| 97|03| 2| 4| 83|29.87| 0.00| 58| 56| 95|26| 4| 7| 146|30.17| 0.00| 46| 45| 97|08| 16| 25| |12| 814|29.91| 0.00| 68| 59| 73|03| 4| 8| 192|29.91| 0.00| 53| 52| 96|04| 15| 23| 204|30.16| 0.00| 45| 44| 95|07| 7| 16| |15| 496|29.83| 0.00| 66| 55| 68|10| 11| 16| 369|29.95| 0.00| 52| 50| 94|07| 15| 22| 301|30.11| 0.00| 47| 43| 86|08| 11| 19| |18| 33|29.79| 0.00| 57| 50| 80|12| 12| 15| 32|30.01| 0.00| 54| 50| 85|08| 11| 14| 5|30.06| 0.00| 42| 41| 95|07| 8| 14| |21| 0|29.77| 0.00| 60| 55| 83|17| 13| 19| 0|30.07| 0.00| 49| 47| 93|10| 8| 10| 0|30.02| 0.00| 42| 41| 97|09| 9| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.04 | 0.05 | 0.07 | 0.08 | 0.11 | 0.15 | 0.18 | 0.18 | 0.19 | 0.23 | 0.30 | 0.34 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 16 | 14 | 14 | 14 | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0258 | 2019 | 2022 | 2022 | 2026 | 0143 | 0156 | 0156 | 0237 | 0258 | 0327 | 0350 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ The precipitation amounts for the indicated time intervals may occur at any time during the month. The time indicated is the ending time of the interval. Date and time are not entered for trace amounts.OBSERVATIONS AT 3-HOUR INTERVALS April 2026: Blue Hill Meteorological Observatory +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 19 | APR 20 | APR 21 | | | | | |00| 0|29.98| 0.00| 42| 42| 97|09| 0| 0| 0|30.04| 0.00| 34| 32| 93|27| 15| 20| 0|30.33| 0.00| 36| 22| 55|03| 7| 12| |03| 0|29.92| 0.00| 43| 42| 97|11| 2| 4| 0|30.07| 0.00| 33| 30| 89|26| 13| 15| 0|30.34| 0.00| 33| 21| 62|03| 8| 13| |06| 12|29.84| 0.00| 44| 44| 98|16| 7| 12| 130|30.12| 0.00| 32| 29| 89|25| 11| 14| 95|30.39| 0.00| 32| 22| 67|04| 6| 9| |09| 54|29.80| 0.00| 47| 46| 98|25| 9| 12| 506|30.16| 0.00| 45| 32| 62|28| 10| 14| 782|30.39| 0.00| 42| 16| 35|05| 6| 13| |12| 60|29.76| 0.00| 49| 48| 98|29| 9| 15| 209|30.15| 0.00| 45| 31| 56|28| 14| 20| 849|30.33| 0.00| 46| 15| 28|02| 1| 10| |15| 58|29.77| 0.00| 43| 42| 94|32| 15| 23| 202|30.13| 0.00| 50| 29| 44|31| 7| 11| 292|30.28| 0.00| 48| 25| 40|10| 15| 19| |18| 58|29.89| 0.05| 38| 37| 95|32| 14| 21| 53|30.20| 0.00| 44| 25| 47|34| 9| 16| 23|30.27| 0.00| 42| 26| 53|15| 8| 17| |21| 0|29.99| 0.00| 34| 33| 94|28| 13| 17| 0|30.28| 0.00| 39| 24| 53|01| 6| 14| 0|30.29| 0.00| 37| 28| 69|17| 14| 23| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 22 | APR 23 | APR 24 | | | | | |00| 0|30.29| 0.00| 36| 29| 77|19| 14| 19| 0|30.02| 0.00| 42| 39| 89|17| 6| 10| 0|29.87| 0.00| 40| 33| 77|12| 11| 13| |03| 0|30.23| 0.00| 35| 30| 82|18| 14| 23| 0|29.96| 0.00| 41| 39| 92|24| 5| 8| | | | | | | | | | |06| 44|30.23| 0.00| 38| 33| 83|16| 12| 21| 35|29.92| 0.00| 42| 40| 93|23| 7| 11| | | | | | | | | | |09| 109|30.21| 0.00| 42| 34| 75|18| 15| 25| 687|29.90| 0.00| 57| 41| 54|31| 15| 23| | | | | | | | | | |12| 135|30.17| 0.00| 43| 33| 69|19| 20| 29| 907|29.86| 0.00| 62| 31| 31|32| 19| 28| | | | | | | | | | |15| 86|30.11| 0.00| 43| 37| 78|18| 14| 27| 626|29.82| 0.00| 64| 22| 20|33| 17| 33| | | | | | | | | | |18| 12|30.07| 0.00| 43| 39| 85|19| 13| 23| 19|29.84| 0.00| 49| 33| 54|09| 15| 21| | | | | | | | | | |21| 0|30.07| 0.00| 42| 38| 86|19| 9| 17| 0|29.91| 0.00| 43| 32| 67|12| 10| 14| | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 25 | APR 26 | APR 27 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 28 | APR 29 | APR 30 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+WEATHER NOTES SUMMARY BY HOURS +--+-----------------------------+---------+ Wind Direction: Directions are those from which the wind is blowing, | | Averages | | indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +----+------+---+---+---+-----+Resultant| South, 27 for West, and 00 or 36 for North. | | | | | | | | | Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind | Wind Gust: The maximum instantaneous wind speed for the ten minute-period | | | | e | | % | W +----+----+ preceding the observation. | | | | m | D | | i | D | | Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | | calculated by timing consecutive pulses from the electronic rain | | u | r | e | w | u | d | r | | gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | | | | s | s | a | P | i | S | c | S | | H| h | s | t | o | d | p | t | p | | o| i | u | u | i | i | e | i | e | | u| n | r | r | n | t | e | o | e | | r| e | e | e | t | y | d | n | d | +--+----+------+---+---+---+-----+----+----+ |00| 0|30.166| 41| 35| 81| 11.7| 24 | 2.0| |03| 0|30.141| 42| 38| 85| 11.7| 24 | 3.9| |06| 37|30.161| 42| 38| 85| 11.2| 23 | 3.3| |09| 353|30.173| 49| 39| 71| 10.7| 23 | 2.8| |12| 517|30.144| 53| 39| 64| 11.1| 28 | 1.9| |15| 314|30.109| 53| 39| 63| 14.3| 14 | 2.9| |18| 18|30.124| 48| 36| 68| 13.5| 16 | 2.5| |21| 0|30.165| 43| 37| 79| 11.6| 19 | 3.5| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)April 2026: Blue Hill Meteorological Observatory ---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | D| A.M. Hour Ending at | P.M. Hour Ending at |D a| | |a t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- 01| | | | | | | | | | | | | | | | | | | | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | |0.01|0.12| | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16|0.01|0.17|0.05|0.11| | | | | | | | | | | | | | | | | | | | |16 17| | | | | |0.02|0.06| | | | |0.02|0.01| | | | | | | | | | | |17 18| | | | | |0.01|0.01| | | | | | | | | | | | | | | | |0.01|18 19| | | | | | | | | |0.02| | |0.05|0.01| | | |0.04| | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.01|0.17|0.05|0.11|0.00|0.03|0.07|0.00|0.00|0.02|0.00|0.02|0.06|0.01|0.00|0.00|0.00|0.04|0.00|0.01|0.12|0.00|0.00|0.01|Sum ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are typically entered in the last column (hour ending at 12 A.M.)