625
CDUS46 KMTR 090835
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1235 AM PST TUE DEC 09 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR DECEMBER 8 2025
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)
YESTERDAY
MAXIMUM 54 3:19 PM 72 2020 59 -5 66
MINIMUM 45 8:11 AM 29 1978 45 0 49
AVERAGE 50 52 -2 58
PRECIPITATION (IN)
YESTERDAY 0.00 1.32 2016 0.13 -0.13 0.00
MONTH TO DATE 0.00 0.99 -0.99 0.00
SINCE OCT 1 4.46 3.82 0.64 4.05
SINCE JAN 1 12.08 16.49 -4.41 18.95
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE DEC 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 15 13 2 7
MONTH TO DATE 114 100 14 66
SINCE DEC 1 114 100 14 66
SINCE JUL 1 465 608 -143 607
COOLING
YESTERDAY 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 (60)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 6.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 12:00 AM
LOWEST 74 3:00 PM
AVERAGE 84
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THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 67 1950
MINIMUM TEMPERATURE (F) 45 24 1972
SUNRISE AND SUNSET
DECEMBER 9 2025......SUNRISE 7:13 AM PST SUNSET 4:51 PM PST
DECEMBER 10 2025......SUNRISE 7:14 AM PST SUNSET 4:51 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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