Climatological Report (Annual)
Issued by NWS Boston, MA

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CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1003 AM EST THU JAN 08 2026

...................................

...THE HARTFORD CT CLIMATE SUMMARY FOR THE YEAR OF 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1904 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH            103   07/22/2011
 LOW             -26   01/22/1961
HIGHEST           99   06/24
LOWEST            -6   01/22
AVG. MAXIMUM    61.6               61.1     0.5
AVG. MINIMUM    41.5               40.9     0.6
MEAN            51.5               51.0     0.5
DAYS MAX >= 90    22               19.6     2.4
DAYS MAX <= 32    27               28.4    -1.4
DAYS MIN <= 32   129              125.8     3.2
DAYS MIN <= 0      2                3.4    -1.4

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       69.23   2011
 MINIMUM       29.45   1965
TOTALS         46.63              47.05   -0.42
DAILY AVG.      0.13               0.13    0.00
DAYS >= .01      127              130.4    -3.4
DAYS >= .10       84               80.8     3.2
DAYS >= .50       33               31.7     1.3
DAYS >= 1.00      12               12.4    -0.4
GREATEST
 24 HR. TOTAL   2.58   07/31 TO 07/31

SNOWFALL (INCHES)
RECORDS
 TOTAL         102.6   1945
 SNOW DEPTH       45   12/31/1945
TOTALS          27.5               51.7   -24.2
SINCE 7/1        8.9               12.2    -3.3
SNOWDEPTH AVG.     1
DAYS >= TRACE     44               22.3    21.7
DAYS >= 1.0       10               12.5    -2.5
GREATEST
 SNOW DEPTH        7   02/16
 24 HR TOTAL     5.4   01/19 TO 01/20

DEGREE DAYS
HEATING TOTAL   5629               5883    -254
 SINCE 7/1      2258               2172      86
COOLING TOTAL    852                819      33
 SINCE 1/1       852                819      33
................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
RESULTANT WIND SPEED/DIRECTION   3/280
HIGHEST WIND SPEED/DIRECTION    43/250    DATE  05/03
HIGHEST GUST SPEED/DIRECTION    58/230    DATE  05/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.62
NUMBER OF DAYS FAIR           63
NUMBER OF DAYS PC            175
NUMBER OF DAYS CLOUDY        124

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             18     MIXED PRECIP               0
HEAVY RAIN               39     RAIN                      57
LIGHT RAIN              116     FREEZING RAIN              1
LT FREEZING RAIN          7     HAIL                       1
HEAVY SNOW                4     SNOW                       7
LIGHT SNOW               42     SLEET                      7
FOG                     150     FOG W/VIS <= 1/4 MILE     17
HAZE                     17

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$