LOCAL CLIMATOLOGICAL DATA Hourly Summary April 23, 2026 Station: Blue Hill Meteorological Observatory Latitude: 42° 12' 44" N Longitude: 71° 06' 53" W Elevation (ground): 635 ft. Time Zone: Eastern +--+------------------------+----+-----+--------------------+------------------------+------+ | | Temperature | | Pre-| Pressure | Wind |Solar | | +------+------+------+---+ Hu-|cipi-| Adj. to Sea Level +----+---+-------+-------+------+ | | M | M | | |mid-| ta- +------+------+------+ Avg|Res| Peak |2Minute| Mean | | | a | i | | D | ity| tion| | | | | +---+---+---+---+ W | | | x | n | | e | | | | | | S | | S | | S | | a | | H| i | i | M | w | M | | | | M | p | | p | | p | | t | | o| m | m | e | | e |Water| M | M | e | e | D | e | D | e | D | t | | u| u | u | a | P | a | | a | i | a | e | i | e | i | e | i | s | | r| m | m | n | t | n |Equiv| x | n | n | d | r | d | r | d | r | m² | | | | | | | | | | | | | | | | | | | | 1| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12| 13| 14| 15| 16| 17 | +--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ |00| 41.6 | 41.5 | 41.6 | 39| 89| 0.00| 30.02| 30.00|30.017| 5.2|210| 11| S| 7|194| 0 | |01| 41.5 | 41.2 | 41.4 | 39| 90| 0.00| 30.01| 29.97|29.989| 5.7|216| 9| SW| 7|219| 0 | |02| 41.3 | 41.0 | 41.2 | 39| 91| 0.00| 29.97| 29.96|29.968| 5.0|226| 9|SSW| 7|212| 0 | |03| 41.3 | 41.0 | 41.2 | 39| 92| 0.00| 29.96| 29.95|29.957| 5.8|251| 10|WSW| 8|254| 0 | | | | | | | | | | | | | | | | | | | |04| 41.4 | 41.2 | 41.3 | 39| 92| 0.00| 29.95| 29.94|29.944| 6.5|252| 11| W| 8|254| 0 | |05| 41.6 | 41.0 | 41.3 | 39| 93| 0.00| 29.94| 29.92|29.933| 7.2|245| 11|WSW| 9|237| 26 | |06| 45.4 | 41.5 | 43.0 | 41| 91| 0.00| 29.93| 29.92|29.922| 7.4|250| 13|WSW| 9|265| 203 | |07| 50.9 | 45.4 | 47.8 | 43| 82| 0.00| 29.92| 29.91|29.916| 7.6|275| 17| W| 13|284| 393 | | | | | | | | | | | | | | | | | | | |08| 57.3 | 50.9 | 54.3 | 43| 65| 0.00| 29.92| 29.90|29.906|11.7|311| 25| NW| 16|297| 598 | |09| 59.4 | 57.2 | 58.6 | 39| 48| 0.00| 29.90| 29.88|29.889|13.9|321| 30|NNW| 23|337| 744 | |10| 60.5 | 59.3 | 59.9 | 33| 36| 0.00| 29.89| 29.87|29.884|20.4|327| 38| NW| 26|317| 868 | |11| 62.4 | 60.0 | 61.6 | 32| 33| 0.00| 29.88| 29.85|29.871|17.9|320| 35|WNW| 25|320| 918 | | | | | | | | | | | | | | | | | | | |12| 63.3 | 61.8 | 62.7 | 28| 27| 0.00| 29.86| 29.84|29.855|19.7|322| 40| NW| 26|315| 892 | |13| 64.7 | 62.8 | 63.4 | 27| 26| 0.00| 29.85| 29.83|29.841|17.4|332| 39| NW| 26|338| 816 | |14| 64.6 | 63.5 | 64.0 | 25| 22| 0.00| 29.83| 29.81|29.822|18.5|323| 35|WNW| 26|325| 700 | |15| 64.8 | 60.6 | 63.0 | 24| 22| 0.00| 29.82| 29.81|29.816|16.4|322| 35| N| 23|335| 395 | | | | | | | | | | | | | | | | | | | |16| 64.9*| 58.0 | 63.0 | 25| 24| 0.00| 29.83| 29.80|29.814|18.6|327| 39| W| 28|314| 342 | |17| 58.0 | 49.2 | 52.8 | 34| 49| 0.00| 29.84| 29.83|29.831|13.7| 84| 22| E| 18| 88| 122 | |18| 49.2 | 45.2 | 46.8 | 32| 57| 0.00| 29.87| 29.84|29.852|13.5| 96| 21| E| 17| 94| 7 | |19| 45.2 | 43.6 | 44.4 | 31| 59| 0.00| 29.90| 29.87|29.885|12.2|103| 19| E| 15|101| 0 | | | | | | | | | | | | | | | | | | | |20| 43.6 | 42.5 | 43.0 | 32| 65| 0.00| 29.91| 29.90|29.906|11.2|113| 18|ESE| 14|114| 0 | |21| 42.6 | 41.2 | 41.9 | 33| 70| 0.00| 29.91| 29.90|29.900| 9.0|121| 14|ESE| 11|118| 0 | |22| 41.3 | 40.6 | 41.0 | 33| 74| 0.00| 29.90| 29.89|29.896| 9.6|120| 12|ESE| 11|119| 0 | |23| 40.7 | 39.8*| 40.3 | 33| 75| 0.00| 29.90| 29.87|29.887| 9.7|126| 13|ESE| 11|123| 0 | +--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | ---- | ---- | ---- | - | -- |Total| For the day: | ---- | +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | ---- | ---- | ---- | - | -- | 0.00| 30.02| 29.80|29.896|11.8|323| 40| NW| 28|314| ---- | +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | Avg | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - | Hour | Hour | Avg | +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+ | 52.3 | 50.0 | 34|61.4| 0.73| 0 | 16 | ---- | -- | - | 12 | 16 | 292.7| +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+ | Total Snow, | | | | Heat 12| | Ice Pellets | Greatest Depth on Ground | Precip Types|Degree+----------+ | 0.0 | of Snow, Ice Pellets or Ice 0 | ......... | Days | Cool 0| +--------------------+-----------------------------------+-------------+------+----------+ NOTES: Data in columns 4, 5, 6, 10, 11, 17 are means via continuous observations for each hour. Units: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for each hour. Column 12: Resultant wind is calculated by the vector sum of continuous wind observations. Precipitation types: 1 FOG, 2 HEAVY FOG, 3 THUNDER, 4 ICE PELLETS, 5 HAIL, 6 GLAZE, 7 DUSTSTORM, 8 SMOKE/HAZE, 9 BLOWING SNOW. Degree Days heating base is 65°F, cooling base is 65°F.