731
CDUS46 KMTR 200030
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
430 PM PST FRI DEC 19 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 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 64 12:28 PM 68 1999 58 6 58
MINIMUM 54 8:23 AM 32 1965 44 10 45
AVERAGE 59 51 8 52
PRECIPITATION (IN)
TODAY 0.01 1.81 1952 0.14 -0.13 0.00
MONTH TO DATE 0.12 2.48 -2.36 2.99
SINCE OCT 1 4.58 5.31 -0.73 7.04
SINCE JAN 1 12.20 17.98 -5.78 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 6 14 -8 13
MONTH TO DATE 265 251 14 199
SINCE DEC 1 265 251 14 199
SINCE JUL 1 616 759 -143 740
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 3 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 67 11:00 AM
AVERAGE 82
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 69 1999
MINIMUM TEMPERATURE (F) 44 31 1965
SUNRISE AND SUNSET
DECEMBER 19 2025......SUNRISE 7:20 AM PST SUNSET 4:54 PM PST
DECEMBER 20 2025......SUNRISE 7:20 AM PST SUNSET 4:54 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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