CLIMATE SUMMARY FOR Blue Hill Meteorological Observatory
May 18, 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL LAST
VALUE LOCAL VALUE VALUE YEAR
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TEMPERATURE (F)
MAXIMUM 84.8 4:10 PM 96 2017 67 68.4
MINIMUM 62.4 5:09 AM 33 2023 49 55.2
MEAN 73.6 58 61.8
PRECIPITATION (in)
AMOUNT 0.00 2.18 2007 0.15 0.00
MONTH TO DATE 0.96 2.98
YEAR TO DATE 93.08 26.88
SNOWFALL (in)
AMOUNT 0.0 0.0 2026 0.0 0.0
MONTH TO DATE 0.0 0.0
SEASON TO DATE 0.0 0.0
SNOW DEPTH 0 0
DEGREE DAYS
HEATING (BASE 65F)
VALUE 0 7 3
MONTH TO DATE 150 91
SEASON TO DATE 5986 5490
COOLING (BASE 65F)
VALUE 9 0 0
MONTH TO DATE 15 12
SEASON TO DATE 21 15
WIND (mph)
HIGHEST WIND SPEED 23 S (196) 5:01 PM 28 W
HIGHEST GUST SPEED 35 S (173) 4:59 PM 39 W
MEAN WIND SPEED 11.8 SSE (159) 15.4 W
BAROMETRIC PRESSURE (in)
MAXIMUM 30.25 8:05 AM 29.56
MINIMUM 30.09 7:24 PM 29.47
MEAN 30.159 29.512
RELATIVE HUMIDITY (PERCENT)
HIGHEST 78 11:50 PM 94
LOWEST 34 12:34 PM 60
MEAN 53.2 77.7
SUNSHINE (W/m2)
TOTAL MINUTES 699 647
MAXIMUM INTENSITY 967 10:41 AM 1218
MEAN INTENSITY 305.4 193.4
MONTH MINUTES 10895
EVAPOTRANSPIRATION (in)
AMOUNT 0.30 0.16
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
none
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SUN AND MOON FOR May 18, 2026
SUNRISE 4:21 AM SUNSET 6:59 PM
MOONRISE 5:22 AM MOONSET 9:54 PM
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T INDICATES TRACE AMOUNT.
RECORDS BEGIN 04/20/2004.