Climatological Report (Daily)
Issued by NWS
Issued by NWS
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878
CDUS46 KMTR 010838
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT WED OCT 01 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 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 74 11:08 AM 94 1980 75 -1 87
2001
MINIMUM 63 2:33 AM 41 1950 55 8 54
AVERAGE 69 65 4 71
PRECIPITATION (IN)
YESTERDAY T 0.56 1983 0.01 -0.01 0.00
MONTH TO DATE 0.07 0.07 0.00 0.00
SINCE OCT 1 16.18 19.64 -3.46 20.23
SINCE JAN 1 7.62 12.67 -5.05 14.90
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 3 44 -41 74
SINCE SEP 1 3 44 -41 74
SINCE JUL 1 93 146 -53 204
COOLING
YESTERDAY 4 2 2 6
MONTH TO DATE 78 56 22 24
SINCE SEP 1 78 56 22 24
SINCE JAN 1 128 166 -38 98
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 10.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 1:00 AM
LOWEST 63 10:00 AM
AVERAGE 75
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 97 1980
MINIMUM TEMPERATURE (F) 55 42 1950
SUNRISE AND SUNSET
OCTOBER 1 2025.......SUNRISE 7:05 AM PDT SUNSET 6:52 PM PDT
OCTOBER 2 2025.......SUNRISE 7:06 AM PDT SUNSET 6:50 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$