Climatological Report (Monthly)
Issued by NWS Boston, MA

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CXUS51 KBOX 030106
CLMBDL

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
906 PM EDT TUE JUN 02 2026

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

...THE HARTFORD CT CLIMATE SUMMARY FOR THE MONTH OF MAY 2026...

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

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             99   05/26/2010
                       05/20/1996
 LOW              28   05/01/2008
                       05/07/2001
                       05/04/1985
HIGHEST           96   05/19                          85
LOWEST            36   05/31                          39
AVG. MAXIMUM    70.6               71.7    -1.1
AVG. MINIMUM    48.2               48.4    -0.2
MEAN            59.4               60.0    -0.6
DAYS MAX >= 90     4                1.4     2.6
DAYS MAX <= 32     0                0.0     0.0
DAYS MIN <= 32     0                0.4    -0.4
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       12.00   1989
 MINIMUM        0.73   1959
TOTALS          3.19               3.79   -0.60
DAILY AVG.      0.10               0.12   -0.02
DAYS >= .01       14               12.3     1.7
DAYS >= .10       10                7.4     2.6
DAYS >= .50        2                2.4    -0.4
DAYS >= 1.00       0                0.8    -0.8
GREATEST
 24 HR. TOTAL   1.09   05/24 TO 05/25

SNOWFALL (INCHES)
RECORDS
 TOTAL           1.3   1977
 SNOW DEPTH        T   05/07/1977
TOTALS           0.0                0.0     0.0
 LIQUID EQUIV   0.00
SINCE 7/1       52.7               51.7     1.0
SNOWDEPTH AVG.     0
DAYS >= TRACE      0                0.0     0.0
DAYS >= 1.0        0                0.0     0.0
GREATEST
 SNOW DEPTH        0
 24 HR TOTAL      MM

DEGREE DAYS
HEATING TOTAL    222                193      29
 SINCE 7/1      6019               5849     170
COOLING TOTAL     57                 40      17
 SINCE 1/1        81                 47      34
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.0
RESULTANT WIND SPEED/DIRECTION   2/270
HIGHEST WIND SPEED/DIRECTION    29/300    DATE  05/03
                                29/020          05/30
HIGHEST GUST SPEED/DIRECTION    41/300    DATE  05/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.68
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       7
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      0
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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