Climatological Report (Seasonal)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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CXUS51 KBOX 011354
CLSBOS
BOSCLSBOS 000
TTAA00 BOX 011352
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
952 AM EDT MON SEP 01 2025
...................................
...THE BOSTON MA CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2025 TO 8/31/2025...
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
..............................................................
TEMPERATURE (F)
RECORD
HIGH 104 07/04/1911
LOW 41 06/01/1945
HIGHEST 102 06/24 98
LOWEST 51 06/02 53
AVG. MAXIMUM 80.0 79.6 0.4
AVG. MINIMUM 64.2 63.6 0.6
MEAN 72.1 71.6 0.5
DAYS MAX >= 90 19 12.6 6.4
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 24.89 1955
MINIMUM 3.92 2016
TOTALS 5.16 10.39 -5.23
DAILY AVG. 0.06 0.11 -0.05
DAYS >= .01 19 29.3 -10.3
DAYS >= .10 11 18.2 -7.2
DAYS >= .50 3 6.8 -3.8
DAYS >= 1.00 2 2.5 -0.5
GREATEST
24 HR. TOTAL 1.33 07/10 TO 07/10
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 0.0
DEGREE DAYS
HEATING TOTAL 51 58 -7
SINCE 7/1 7 4 3
COOLING TOTAL 728 668 60
SINCE 1/1 757 700 57
FREEZE DATES
RECORD
EARLIEST 10/05/1881
LATEST 05/03/1882
EARLIEST MM
LATEST 04/09
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 9.7
RESULTANT WIND SPEED/DIRECTION 2/200
HIGHEST WIND SPEED/DIRECTION 33/290 DATE 06/20
HIGHEST GUST SPEED/DIRECTION 49/260 DATE 06/20
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.55
NUMBER OF DAYS FAIR 28
NUMBER OF DAYS PC 39
NUMBER OF DAYS CLOUDY 25
AVERAGE RH (PERCENT) 68
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 9 MIXED PRECIP 0
HEAVY RAIN 6 RAIN 10
LIGHT RAIN 28 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 27 FOG W/VIS <= 1/4 MILE 2
HAZE 12
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$