LOCAL CLIMATOLOGICAL DATA Hourly Summary July 20, 2026 Station: Blue Hill Meteorological Observatory 2 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| 62.8 | 61.5 | 62.0 | 49| 62| 0.00| 29.93| 29.91|29.923| 4.7|327| 10|NNW| 7|337| 0 | |01| 61.6 | 60.2 | 60.9 | 49| 65| 0.00| 29.92| 29.91|29.914| 9.3|298| 14| NW| 12|308| 0 | |02| 60.4 | 59.5 | 59.9 | 49| 68| 0.00| 29.92| 29.90|29.908|11.7|305| 16|WNW| 14|307| 0 | |03| 59.5 | 58.3 | 58.9 | 49| 71| 0.00| 29.93| 29.91|29.922|10.4|297| 16|WNW| 12|297| 0 | | | | | | | | | | | | | | | | | | | |04| 58.4 | 57.7*| 58.0 | 49| 73| 0.00| 29.97| 29.93|29.945| 9.9|296| 13|WNW| 11|300| 6 | |05| 59.3 | 57.8 | 58.2 | 50| 74| 0.00| 29.98| 29.97|29.973|10.2|299| 13|WNW| 11|303| 37 | |06| 64.4 | 59.3 | 61.5 | 52| 70| 0.00| 29.99| 29.98|29.983| 7.8|310| 13| NW| 10|307| 251 | |07| 70.1 | 64.4 | 67.2 | 54| 63| 0.00| 30.00| 29.99|29.998| 3.4|323| 12|NNW| 9|324| 439 | | | | | | | | | | | | | | | | | | | |08| 73.4 | 70.0 | 72.0 | 55| 56| 0.00| 30.01| 30.00|30.003| 1.8|303| 7|WNW| 4|287| 608 | |09| 77.0 | 73.3 | 75.3 | 54| 48| 0.00| 30.01| 30.00|30.002| 2.1|293| 9|NNW| 6|316| 735 | |10| 78.8 | 76.9 | 77.9 | 52| 41| 0.00| 30.01| 30.00|30.011| 6.0|255| 15|WSW| 11|217| 800 | |11| 80.3 | 78.7 | 79.2 | 51| 38| 0.00| 30.01| 30.00|30.003| 7.6|248| 18|WSW| 12|257| 884 | | | | | | | | | | | | | | | | | | | |12| 81.0 | 79.8 | 80.3 | 51| 37| 0.00| 30.00| 29.99|29.995| 8.3|232| 21|WSW| 15|241| 894 | |13| 81.7 | 80.5 | 81.2 | 51| 35| 0.00| 29.99| 29.99|29.989| 7.5|232| 22| S| 14|189| 836 | |14| 82.8*| 81.0 | 81.6 | 53| 37| 0.00| 29.99| 29.97|29.981| 7.1|238| 19| S| 15|218| 754 | |15| 82.5 | 80.2 | 81.2 | 54| 39| 0.00| 29.98| 29.96|29.972| 9.7|221| 21| S| 15|182| 585 | | | | | | | | | | | | | | | | | | | |16| 80.6 | 77.5 | 79.3 | 55| 43| 0.00| 29.97| 29.96|29.965|13.3|189| 29| S| 21|184| 404 | |17| 77.8 | 74.6 | 76.5 | 54| 46| 0.00| 29.98| 29.96|29.972|13.5|197| 29| S| 18|194| 201 | |18| 74.7 | 70.8 | 72.5 | 53| 50| 0.00| 29.99| 29.97|29.980|14.5|185| 30| S| 20|180| 26 | |19| 70.8 | 68.1 | 69.4 | 53| 56| 0.00| 30.00| 29.98|29.990|12.0|185| 24| S| 18|195| 2 | | | | | | | | | | | | | | | | | | | |20| 68.1 | 66.1 | 67.0 | 55| 65| 0.00| 30.02| 30.00|30.011|12.5|183| 22| S| 15|178| 0 | |21| 66.1 | 64.7 | 65.4 | 56| 73| 0.00| 30.02| 30.01|30.011|12.9|188| 23| S| 16|182| 0 | |22| 64.7 | 63.7 | 64.2 | 57| 77| 0.00| 30.01| 30.00|30.008|11.8|200| 21| S| 14|201| 0 | |23| 63.7 | 62.5 | 63.0 | 58| 83| 0.00| 30.01| 29.99|30.000|14.1|193| 23| S| 17|189| 0 | +--+------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | ---- | ---- | ---- | - | -- |Total| For the day: | ---- | +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | ---- | ---- | ---- | - | -- | 0.00| 30.02| 29.90|29.978| 9.3|232| 30| S| 21|184| ---- | +------+------+------+---+----+-----+------+------+------+----+---+---+---+---+---+------+ | Avg | Mean |Avg| Avg|Month| Hour | Hour | ---- | -- | - | Hour | Hour | Avg | +-------------+------+---+----+-----+------+------+------+----+---+-------+-------+------+ | 70.3 | 69.7 | 53|57.1| 2.24| 20 | 2 | ---- | -- | - | 18 | 16 | 310.8| +-------------+------+---+----+-----+------+------+------+----+---+----+--+---+---+------+ | Total Snow, | | | | Heat 0| | Ice Pellets | Greatest Depth on Ground | Precip Types|Degree+----------+ | 0.0 | of Snow, Ice Pellets or Ice 0 | ......... | Days | Cool 6| +--------------------+-----------------------------------+-------------+------+----------+ 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.