823
CDUS46 KMTR 170042
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
442 PM PST TUE DEC 16 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 57 3:59 PM 70 1998 58 -1 58
MINIMUM 48 6:23 AM 33 1965 44 4 45
AVERAGE 53 51 2 52
PRECIPITATION (IN)
TODAY 0.00 2.10 2002 0.14 -0.14 0.28
MONTH TO DATE 0.00 2.07 -2.07 2.99
SINCE OCT 1 4.46 4.90 -0.44 7.04
SINCE JAN 1 12.08 17.57 -5.49 21.94
SNOWFALL (IN)
TODAY MM 0.0
MONTH TO DATE T
SINCE DEC 1 T
SINCE JUL 1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 12 14 -2 13
MONTH TO DATE 238 209 29 161
SINCE DEC 1 238 209 29 161
SINCE JUL 1 589 717 -128 702
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 150 201 -51 184
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NE (30)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 5.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 2:00 AM
LOWEST 74 11:00 AM
AVERAGE 84
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 67 1958
MINIMUM TEMPERATURE (F) 44 30 1965
SUNRISE AND SUNSET
DECEMBER 16 2025......SUNRISE 7:18 AM PST SUNSET 4:53 PM PST
DECEMBER 17 2025......SUNRISE 7:19 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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