241
CDUS46 KMTR 260039
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
539 PM PDT THU SEP 25 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 25 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 73 1:25 PM 96 2019 75 -2 70
MINIMUM 62 6:47 AM 47 1948 56 6 56
1972
AVERAGE 68 65 3 63
PRECIPITATION (IN)
TODAY 0.00 0.41 2014 0.00 0.00 0.00
MONTH TO DATE 0.04 0.04 0.00 0.00
SINCE OCT 1 16.15 19.61 -3.46 20.23
SINCE JAN 1 7.59 12.64 -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 2
MONTH TO DATE 2 34 -32 65
SINCE SEP 1 2 34 -32 65
SINCE JUL 1 92 136 -44 195
COOLING
TODAY 3 2 1 0
MONTH TO DATE 70 50 20 12
SINCE SEP 1 70 50 20 12
SINCE JAN 1 120 160 -40 86
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 13.2
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 7:00 AM
LOWEST 66 3:00 PM
AVERAGE 80
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 95 1958
MINIMUM TEMPERATURE (F) 56 46 1948
SUNRISE AND SUNSET
SEPTEMBER 25 2025.....SUNRISE 7:00 AM PDT SUNSET 7:01 PM PDT
SEPTEMBER 26 2025.....SUNRISE 7:01 AM PDT SUNSET 7:00 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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