National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
CXUS51 KBOX 011145
CLMBDL

CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
745 AM EDT THU JUN 01 2023

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

...THE HARTFORD CT CLIMATE SUMMARY FOR THE MONTH OF MAY 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1904 TO 2023

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           88   05/12                          93
LOWEST            31   05/18                          38
AVG. MAXIMUM    73.4               71.7     1.7
AVG. MINIMUM    44.9               48.4    -3.5
MEAN            59.1               60.0    -0.9
DAYS MAX >= 90     0                1.4    -1.4
DAYS MAX <= 32     0                0.0     0.0
DAYS MIN <= 32     1                0.4     0.6
DAYS MIN <= 0      0                0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       12.00   1989
 MINIMUM        0.73   1959
TOTALS          3.00               3.79   -0.79
DAILY AVG.      0.10               0.12   -0.02
DAYS >= .01        7               12.3    -5.3
DAYS >= .10        6                7.4    -1.4
DAYS >= .50        1                2.4    -1.4
DAYS >= 1.00       1                0.8     0.2
GREATEST
 24 HR. TOTAL   2.12   05/20 TO 05/20

SNOWFALL (INCHES)
RECORDS
 MAXIMUM         1.3   1977
 MINIMUM         0.0   MULTI-YEARS
 SNOW DEPTH        T   05/07/1977
TOTALS           0.0                0.0     0.0
 LIQUID EQUIV   0.00
SINCE 7/1       24.2               51.7   -27.5
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    190                193      -3
 SINCE 7/1      4972               5849    -877
COOLING TOTAL     18                 40     -22
 SINCE 1/1        41                 47      -6
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.1
RESULTANT WIND SPEED/DIRECTION   1/290
HIGHEST WIND SPEED/DIRECTION    26/340    DATE  05/17
HIGHEST GUST SPEED/DIRECTION    35/360    DATE  05/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.46
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN                9     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      1
HAZE                      2

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

$$