LOCAL CLIMATOLOGICAL DATA Monthly Summary April 2026 Station: Blue Hill Meteorological Observatory 2 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 | 38.5 | 55.8 | 49.6 | 46| 89| 9| 0|.........| 0| 0.00| 0.0| 30.40| 29.84|30.087|13.1| 3.1|157| 35| S| 25| 73| 69 | |02| 38.6 | 34.5 | 36.5 | 35.5 | 34| 94| 28| 0|.........| 0| 0.00| 0.0| 30.58| 30.39|30.514|13.7|13.5| 85| 31|ENE| 22| 85| 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|11.5| 9.3|209| 35|WSW| 23|238| 140 | |04| 58.7 | 35.0 | 46.8 | 46.2 | 41| 82| 18| 0|.........| 0| 0.00| 0.0| 30.40| 30.04|30.265|14.5| 5.7| 83| 38|ENE| 28| 83| 114 | |05| 55.1 | 36.8 | 45.9 | 45.3 | 43| 93| 19| 0|.........| 0| 0.00| 0.0| 30.27| 29.70|29.892|11.6| 5.6|239| 34| W| 23|299| 33 | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 49.2 | 32.2 | 40.7 | 41.1 | 26| 57| 24| 0|.........| 0| 0.00| 0.0| 30.14| 29.81|29.950|16.6|16.3|303| 45|WNW| 33|303| 213 | |07| 49.0 | 29.4 | 39.2 | 36.8 | 28| 70| 26| 0|.........| 0| 0.00| 0.0| 30.45| 30.12|30.210|10.4| 3.9|317| 42| NW| 27|328| 134 | |08| 43.1 | 25.6*| 34.3*| 33.7 | 20| 57| 30| 0|.........| 0| 0.00| 0.0| 30.68| 30.45|30.602|10.2| 3.0| 73| 31| S| 22|177| 278 | |09| 56.4 | 30.8 | 43.6 | 41.0 | 25| 59| 21| 0|.........| 0| 0.00| 0.0| 30.67| 30.45|30.574|14.7|14.0|201| 43| S| 31|179| 281 | |10| 67.0 | 33.9 | 50.5 | 49.2 | 36| 63| 14| 0|.........| 0| 0.00| 0.0| 30.47| 30.09|30.265|16.1|15.6|208| 43| S| 30|183| 258 | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 59.7 | 41.0 | 50.3 | 51.4 | 32| 48| 14| 0|.........| 0| 0.00| 0.0| 30.41| 30.03|30.184|13.3|10.8|323| 33| N| 24|333| 274 | |12| 54.3 | 35.3 | 44.8 | 44.2 | 26| 52| 20| 0|.........| 0| 0.00| 0.0| 30.55| 30.34|30.448| 4.1| 2.5| 23| 22| N| 16| 2| 233 | |13| 69.3 | 41.5 | 55.4 | 56.4 | 49| 78| 9| 0|.........| 0| 0.02| 0.0| 30.35| 29.86|30.038|17.2|16.5|213| 40| S| 32|192| 119 | |14| 83.3*| 57.9 | 70.6*| 67.4 | 57| 71| 0| 6|.........| 0| 0.13| 0.0| 30.02| 29.80|29.919|13.3| 9.4|229| 51| S| 39|176| 245 | |15| 76.9 | 44.5 | 60.7 | 58.6 | 53| 83| 4| 0|.........| 0| 0.00| 0.0| 29.95| 29.84|29.901| 6.3| 2.0|280| 24|ENE| 20| 59| 238 | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 69.2 | 45.0 | 57.1 | 55.9 | 52| 87| 8| 0|.........| 0| 0.34| 0.0| 30.01| 29.73|29.862| 5.5| 1.8|159| 45| N| 30|315| 203 | |17| 61.5 | 47.0 | 54.3 | 54.0 | 51| 91| 10| 0|.........| 0| 0.11| 0.0| 30.08| 29.76|29.911| 6.0| 3.7| 64| 28| NE| 24| 1| 85 | |18| 48.3 | 41.8 | 45.0 | 45.2 | 44| 95| 20| 0|.........| 0| 0.03| 0.0| 30.18| 29.98|30.097| 4.6| 4.2| 69| 19|ENE| 15| 81| 93 | |19| 49.1 | 33.8 | 41.4 | 42.0 | 41| 96| 23| 0|.........| 0| 0.12| 0.0| 30.04| 29.73|29.867|10.3| 6.3|297| 37|NNW| 28|340| 28 | |20| 50.6 | 31.7 | 41.2 | 40.5 | 29| 65| 23| 0|.........| 0| 0.00| 0.0| 30.33| 30.04|30.161| 9.9| 7.7|309| 26|WNW| 20|310| 204 | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | |22| | | | | | | | | | | | | | | | | | | | | | | | |23| | | | | | | | | | | | | | | | | | | | | | | | |24| | | | | | | | | | | | | | | | | | | | | | | | |25| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |26| | | | | | | | | | | | | | | | | | | | | | | | |27| | | | | | | | | | | | | | | | | | | | | | | | |28| | | | | | | | | | | | | | | | | | | | | | | | |29| | | | | | | | | | | | | | | | | | | | | | | | |30| | | | | | | | | | | | | | | | | | | | | | | | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1180.2| 751.5|------|------|---|----| 333| 6| Days | 0.75| 0.0| 30.68| 29.70|30.149|11.1| 2.4|235| 51| S| 39|176| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 59.0| 37.6| 48.3 | 47.2 | 39|75.9|----|----|≥.01 Inch 6|92.25| 0.0| 8 | 5 |------|----|----|---| 14 | 14 | 164| +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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 |5661| 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 | 5 | 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 2 +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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|29.91| 0.00| 39| 37| 96|15| 12| 15| 0|30.39| 0.00| 39| 35| 88|07| 14| 28| 0|30.51| 0.00| 35| 34| 96|09| 9| 15| |03| 0|29.85| 0.00| 46| 45| 97|22| 20| 28| 0|30.41| 0.00| 36| 35| 95|07| 16| 28| 0|30.43| 0.00| 36| 35| 97|11| 10| 14| |06| 47|29.92| 0.00| 54| 51| 91|22| 17| 24| 7|30.48| 0.00| 35| 34| 96|08| 17| 25| 11|30.37| 0.00| 37| 36| 97|14| 5| 8| |09| 113|30.01| 0.00| 58| 55| 89|23| 13| 17| 63|30.55| 0.00| 35| 34| 96|07| 12| 23| 207|30.33| 0.00| 41| 40| 98|22| 10| 14| |12| 485|30.04| 0.00| 69| 59| 71|26| 4| 7| 118|30.56| 0.00| 35| 34| 93|08| 13| 29| 290|30.22| 0.00| 48| 48| 98|22| 5| 16| |15| 32|30.13| 0.00| 45| 42| 89|08| 19| 30| 65|30.55| 0.00| 35| 33| 94|09| 12| 25| 503|30.12| 0.00| 66| 55| 68|21| 14| 21| |18| 0|30.26| 0.00| 41| 40| 95|06| 14| 21| 0|30.56| 0.00| 35| 33| 94|09| 11| 19| 14|30.08| 0.00| 63| 53| 69|22| 16| 28| |21| 0|30.34| 0.00| 40| 39| 96|08| 11| 15| 0|30.54| 0.00| 35| 33| 94|09| 12| 17| 0|30.07| 0.00| 55| 51| 85|22| 19| 25| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 4 | APR 5 | APR 6 | | | | | |00| 0|30.06| 0.00| 59| 54| 84|24| 18| 29| 0|30.27| 0.00| 37| 35| 92|13| 10| 16| 0|29.82| 0.00| 43| 33| 70|31| 13| 25| |03| 0|30.05| 0.00| 57| 54| 88|26| 15| 21| 0|30.11| 0.00| 37| 36| 95|13| 11| 15| 0|29.82| 0.00| 41| 32| 70|31| 13| 24| |06| 37|30.14| 0.00| 57| 52| 83|33| 13| 20| 21|29.98| 0.00| 39| 38| 97|16| 5| 12| 19|29.88| 0.00| 36| 25| 65|29| 18| 31| |09| 306|30.27| 0.00| 56| 44| 64|07| 13| 17| 120|29.86| 0.00| 44| 44| 97|18| 17| 26| 316|29.92| 0.00| 42| 27| 55|30| 19| 32| |12| 302|30.35| 0.00| 45| 37| 74|10| 19| 27| 65|29.81| 0.00| 52| 51| 97|22| 7| 11| 278|29.93| 0.00| 46| 26| 46|27| 14| 26| |15| 199|30.37| 0.00| 40| 34| 78|09| 19| 30| 46|29.73| 0.00| 55| 55| 98|20| 12| 18| 167|29.92| 0.00| 46| 25| 44|28| 23| 29| |18| 0|30.38| 0.00| 35| 32| 87|10| 12| 22| 0|29.74| 0.00| 53| 52| 98|28| 15| 23| 12|30.01| 0.00| 42| 22| 45|30| 16| 29| |21| 0|30.36| 0.00| 35| 33| 92|11| 11| 18| 0|29.83| 0.00| 45| 39| 81|31| 18| 27| 0|30.12| 0.00| 37| 25| 61|32| 8| 14| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 7 | APR 8 | APR 9 | | | | | |00| 0|30.14| 0.00| 32| 24| 72|34| 4| 5| 0|30.45| 0.00| 30| 20| 67|33| 14| 28| 0|30.64| 0.00| 31| 24| 74|20| 12| 17| |03| 0|30.14| 0.00| 34| 25| 69|16| 5| 10| 0|30.50| 0.00| 27| 17| 67|35| 11| 20| 0|30.63| 0.00| 31| 27| 86|22| 14| 18| |06| 12|30.16| 0.00| 35| 27| 72|13| 8| 11| 23|30.60| 0.00| 26| 16| 67|00| 10| 15| 25|30.65| 0.00| 31| 28| 88|23| 8| 11| |09| 65|30.15| 0.00| 39| 32| 74|14| 16| 22| 649|30.66| 0.00| 35| 18| 50|02| 5| 15| 659|30.65| 0.00| 45| 22| 40|17| 10| 17| |12|1016|30.12| 0.00| 47| 38| 72|33| 10| 15| 867|30.65| 0.00| 39| 18| 43|03| 6| 15| 867|30.59| 0.00| 55| 22| 28|19| 10| 22| |15| 272|30.17| 0.00| 38| 37| 94|32| 8| 11| 575|30.60| 0.00| 42| 21| 42|09| 9| 12| 582|30.53| 0.00| 53| 18| 25|18| 27| 40| |18| 14|30.26| 0.00| 37| 20| 50|30| 18| 27| 14|30.59| 0.00| 38| 21| 49|12| 8| 12| 19|30.51| 0.00| 44| 19| 37|18| 16| 36| |21| 0|30.37| 0.00| 33| 22| 64|31| 14| 25| 0|30.64| 0.00| 32| 23| 67|17| 17| 28| 0|30.49| 0.00| 37| 29| 75|19| 14| 34| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 10 | APR 11 | APR 12 | | | | | |00| 0|30.47| 0.00| 35| 32| 91|21| 14| 17| 0|30.09| 0.00| 49| 32| 53|22| 15| 21| 0|30.41| 0.00| 41| 23| 48|34| 14| 19| |03| 0|30.39| 0.00| 35| 33| 93|21| 16| 20| 0|30.03| 0.00| 49| 39| 67|24| 10| 15| 0|30.43| 0.00| 37| 24| 60|32| 10| 13| |06| 39|30.38| 0.00| 36| 34| 91|22| 15| 20| 23|30.10| 0.00| 49| 41| 76|34| 9| 14| 35|30.49| 0.00| 36| 23| 59|01| 9| 11| |09| 621|30.34| 0.00| 52| 38| 60|21| 9| 15| 656|30.17| 0.00| 51| 33| 50|33| 15| 22| 661|30.54| 0.00| 48| 24| 40|13| 5| 11| |12| 814|30.27| 0.00| 65| 40| 41|20| 10| 18| 867|30.16| 0.00| 58| 31| 36|30| 21| 31| 817|30.50| 0.00| 51| 23| 33|13| 0| 0| |15| 538|30.18| 0.00| 65| 40| 41|18| 24| 36| 584|30.17| 0.00| 59| 30| 32|30| 17| 28| 183|30.43| 0.00| 53| 26| 35|13| 0| 0| |18| 11|30.14| 0.00| 53| 33| 47|19| 18| 31| 18|30.24| 0.00| 54| 26| 34|34| 16| 25| 5|30.40| 0.00| 46| 29| 52|13| 0| 0| |21| 0|30.13| 0.00| 47| 35| 61|21| 16| 27| 0|30.34| 0.00| 45| 26| 47|34| 12| 17| 0|30.39| 0.00| 41| 35| 79|13| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 13 | APR 14 | APR 15 | | | | | |00| 0|30.35| 0.00| 42| 38| 87|13| 0| 0| 0|29.97| 0.00| 61| 55| 81|26| 16| 24| | | | | | | | | | |03| 0|30.24| 0.00| 45| 41| 86|19| 20| 26| 0|29.95| 0.00| 59| 55| 86|27| 16| 20| 0|29.85| 0.00| 60| 58| 93|28| 12| 16| |06| 32|30.16| 0.00| 47| 41| 80|19| 28| 37| 76|30.00| 0.00| 59| 55| 88|26| 10| 14| 84|29.91| 0.00| 60| 57| 93|28| 12| 15| |09| 98|30.09| 0.00| 52| 48| 85|20| 16| 28| 592|30.02| 0.00| 71| 57| 61|29| 15| 20| 381|29.94| 0.00| 70| 58| 65|31| 0| 0| |12| 188|29.98| 0.00| 59| 53| 81|21| 19| 32| 837|29.95| 0.00| 81| 57| 44|24| 0| 0| 694|29.92| 0.00| 66| 53| 63|06| 15| 17| |15| 214|29.88| 0.00| 64| 54| 71|21| 16| 27| 540|29.85| 0.00| 78| 59| 52|19| 21| 43| 309|29.89| 0.00| 67| 56| 68|09| 10| 13| |18| 16|29.88| 0.00| 68| 56| 64|23| 17| 23| 26|29.80| 0.00| 69| 56| 65|17| 25| 42| 26|29.90| 0.00| 47| 45| 92|09| 0| 0| |21| 0|29.95| 0.00| 62| 55| 77|22| 13| 18| 0|29.88| 0.00| 61| 59| 92|18| 6| 8| 0|29.93| 0.00| 45| 44| 96|09| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 16 | APR 17 | APR 18 | | | | | |00| 0|29.92| 0.00| 45| 44| 96|05| 11| 16| 0|29.81| 0.00| 55| 49| 79|00| 23| 45| 0|30.07| 0.00| 47| 46| 95|08| 6| 8| |03| 0|29.96| 0.34| 49| 48| 97|28| 8| 27| 0|29.77| 0.00| 55| 52| 88|00| 8| 10| 0|30.05| 0.00| 48| 46| 95|07| 12| 18| |06| 25|29.92| 0.00| 49| 48| 97|02| 4| 8| 5|29.84| 0.06| 54| 52| 90|23| 9| 9| 21|30.15| 0.00| 48| 47| 97|04| 0| 0| |09| 250|29.94| 0.00| 52| 51| 97|10| 0| 0| 83|29.86| 0.00| 58| 56| 95|29| 4| 7| 146|30.17| 0.00| 46| 45| 97|04| 0| 0| |12| 814|29.91| 0.00| 68| 59| 73|11| 5| 7| 192|29.90| 0.00| 53| 52| 96|05| 15| 24| 204|30.16| 0.00| 45| 44| 95|04| 0| 0| |15| 496|29.83| 0.00| 66| 55| 68|11| 10| 13| 369|29.94| 0.00| 52| 51| 95|07| 0| 0| 301|30.11| 0.00| 47| 43| 86|04| 0| 0| |18| 32|29.78| 0.00| 57| 50| 80|11| 0| 0| 32|30.00| 0.00| 54| 50| 85|07| 0| 0| 5|30.06| 0.00| 42| 41| 95|07| 8| 13| |21| 0|29.77| 0.00| 60| 55| 83|17| 17| 24| 0|30.07| 0.00| 49| 47| 93|10| 6| 9| 0|30.02| 0.00| 42| 41| 97|09| 8| 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 2 +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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|15| 1| 2| 0|30.04| 0.00| 34| 32| 93|28| 14| 18| 0|30.32| 0.00| 36| 21| 54|04| 7| 12| |03| 0|29.91| 0.00| 43| 42| 97|20| 3| 4| 0|30.07| 0.00| 33| 30| 89|27| 13| 15| | | | | | | | | | |06| 12|29.83| 0.00| 44| 44| 98|16| 6| 17| 130|30.11| 0.00| 32| 29| 89|26| 10| 14| | | | | | | | | | |09| 54|29.79| 0.00| 47| 46| 98|27| 7| 12| 506|30.15| 0.00| 45| 32| 62|29| 10| 16| | | | | | | | | | |12| 60|29.75| 0.00| 49| 48| 98|30| 10| 14| 211|30.14| 0.00| 45| 31| 56|29| 15| 17| | | | | | | | | | |15| 58|29.77| 0.00| 43| 42| 94|33| 14| 21| 202|30.14| 0.00| 50| 29| 44|32| 6| 13| | | | | | | | | | |18| 58|29.89| 0.05| 38| 37| 95|33| 13| 20| 53|30.20| 0.00| 44| 25| 47|00| 11| 17| | | | | | | | | | |21| 0|29.99| 0.00| 34| 33| 94|29| 14| 18| 0|30.28| 0.00| 39| 24| 53|01| 7| 15| | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 22 | APR 23 | APR 24 | | | | | |00| | | | | | | | | | | | | | | | | | | | | | | | | | | | |03| | | | | | | | | | | | | | | | | | | | | | | | | | | | |06| | | | | | | | | | | | | | | | | | | | | | | | | | | | |09| | | | | | | | | | | | | | | | | | | | | | | | | | | | |12| | | | | | | | | | | | | | | | | | | | | | | | | | | | |15| | | | | | | | | | | | | | | | | | | | | | | | | | | | |18| | | | | | | | | | | | | | | | | | | | | | | | | | | | |21| | | | | | | | | | | | | | | | | | | | | | | | | | | | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | 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|30.180| 42| 36| 81| 11.5| 30 | 2.0| |03| 0|30.130| 43| 39| 86| 12.2| 25 | 4.2| |06| 34|30.154| 43| 39| 86| 10.7| 25 | 3.8| |09| 327|30.172| 49| 40| 74| 9.8| 23 | 2.9| |12| 499|30.146| 54| 41| 67| 9.9| 28 | 1.2| |15| 312|30.116| 53| 40| 66| 13.1| 18 | 3.4| |18| 18|30.133| 48| 37| 69| 11.6| 24 | 1.7| |21| 0|30.175| 44| 37| 79| 11.2| 21 | 2.5| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent)April 2026: Blue Hill Meteorological Observatory 2 ---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | 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| | | | | | | | | |0.02| | | | | | | | | | | | | | |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|0.04|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.)