098
CDUS46 KMTR 170834
CLISFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1234 AM PST WED DEC 17 2025
...............................
..THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR DECEMBER 16 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1850 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 58 2:43 PM 71 1998 58 0 54
MINIMUM 46 4:43 AM 37 1963 47 -1 47
AVERAGE 52 52 0 51
PRECIPITATION (IN)
YESTERDAY 0.00 1.76 2002 0.16 -0.16 0.73
MONTH TO DATE 0.00 2.40 -2.40 3.31
SINCE OCT 1 3.53 5.94 -2.41 7.98
SINCE JAN 1 13.32 20.53 -7.21 27.06
DEGREE DAYS
HEATING
YESTERDAY 13 13 0 14
MONTH TO DATE 248 191 57 151
SINCE DEC 1 248 191 57 151
SINCE JUL 1 820 919 -99 785
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 76 121 -45 144
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THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 69 1996
MINIMUM TEMPERATURE (F) 47 39 1924
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 7:19 AM PST SUNSET 4:53 PM PST
DECEMBER 18 2025......SUNRISE 7:20 AM PST SUNSET 4:53 PM PST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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