Climatological Report (Daily)
Issued by NWS Boston, MA
Issued by NWS Boston, MA
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CDUS41 KBOX 160545
CLIBDL
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
145 AM EDT TUE SEP 16 2025
...................................
...THE HARTFORD CT CLIMATE SUMMARY FOR SEPTEMBER 15 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1904 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 80 337 PM 90 1915 76 4 83
MINIMUM 57 610 AM 35 1975 54 3 58
AVERAGE 69 65 4 71
PRECIPITATION (IN)
YESTERDAY 0.00 1.83 1933 0.16 -0.16 0.00
MONTH TO DATE 1.78 2.00 -0.22 0.31
SINCE SEP 1 1.78 2.00 -0.22 0.31
SINCE JAN 1 35.09 32.55 2.54 38.43
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0
2001
2002
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 19 23 -4 5
SINCE SEP 1 19 23 -4 5
SINCE JUL 1 38 31 7 5
COOLING
YESTERDAY 4 3 1 6
MONTH TO DATE 27 59 -32 48
SINCE SEP 1 27 59 -32 48
SINCE JAN 1 798 784 14 1126
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION N (10)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 4.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1200 AM
LOWEST 42 300 PM
AVERAGE 70
..........................................................
THE HARTFORD CT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 92 1915
1941
1991
MINIMUM TEMPERATURE (F) 54 33 1964
SUNRISE AND SUNSET
SEPTEMBER 16 2025.....SUNRISE 632 AM EDT SUNSET 658 PM EDT
SEPTEMBER 17 2025.....SUNRISE 633 AM EDT SUNSET 656 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$