572
CDUS46 KMTR 010045
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
545 PM PDT TUE SEP 30 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 2025
VALID TODAY AS OF 0500 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 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)
TODAY 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)
TODAY MM 0.0
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 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
TODAY 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 (190)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 10.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 1:00 AM
LOWEST 63 10:00 AM
AVERAGE 75
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 97 1980
MINIMUM TEMPERATURE (F) 55 42 1950
SUNRISE AND SUNSET
SEPTEMBER 30 2025.....SUNRISE 7:05 AM PDT SUNSET 6:53 PM PDT
OCTOBER 1 2025.......SUNRISE 7:05 AM PDT SUNSET 6:52 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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