Climatological Report (Monthly)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
332
CXUS51 KBOX 011318
CLMBOS
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
918 AM EDT MON SEP 01 2025
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...THE BOSTON MA CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1872 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 102 08/02/1975
LOW 46 08/25/1940
HIGHEST 92 08/17 95
LOWEST 56 08/20 58
AVG. MAXIMUM 78.4 80.4 -2.0
AVG. MINIMUM 62.9 65.1 -2.2
MEAN 70.6 72.7 -2.1
DAYS MAX >= 90 3 3.8 -0.8
DAYS MAX <= 32 0 0.0 0.0
DAYS MIN <= 32 0 0.0 0.0
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 17.09 1955
MINIMUM 0.39 1883
TOTALS 0.83 3.23 -2.40
DAILY AVG. 0.03 0.10 -0.07
DAYS >= .01 4 9.0 -5.0
DAYS >= .10 3 5.4 -2.4
DAYS >= .50 0 2.2 -2.2
DAYS >= 1.00 0 0.8 -0.8
GREATEST
24 HR. TOTAL 0.28 08/01 TO 08/01
SNOWFALL (INCHES)
RECORDS
TOTAL T 2020
TOTALS 0.0 0.0 0.0
LIQUID EQUIV 0.00
SINCE 7/1 0.0 0.0 0.0
DAYS >= TRACE 0 0.0 0.0
DAYS >= 1.0 0 0.0 0.0
GREATEST
24 HR TOTAL MM
DEGREE DAYS
HEATING TOTAL 7 5 2
SINCE 7/1 7 4 3
COOLING TOTAL 187 245 -58
SINCE 1/1 757 700 57
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WIND (MPH)
AVERAGE WIND SPEED 9.3
RESULTANT WIND SPEED/DIRECTION 2/150
HIGHEST WIND SPEED/DIRECTION 30/040 DATE 08/14
HIGHEST GUST SPEED/DIRECTION 44/040 DATE 08/14
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.44
NUMBER OF DAYS FAIR 13
NUMBER OF DAYS PC 14
NUMBER OF DAYS CLOUDY 4
AVERAGE RH (PERCENT) 65
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 2 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 3
LIGHT RAIN 6 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 6 FOG W/VIS <= 1/4 MILE 1
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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