989
CDUS46 KMTR 090027
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
527 PM PDT MON SEP 08 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 8 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 78 3:12 PM 100 1984 75 3 71
MINIMUM 61 5:20 AM 48 1946 56 5 51
AVERAGE 70 66 4 61
PRECIPITATION (IN)
TODAY 0.00 0.17 1985 0.00 0.00 0.00
MONTH TO DATE 0.00 0.01 -0.01 0.00
SINCE OCT 1 16.11 19.58 -3.47 20.23
SINCE JAN 1 7.55 12.61 -5.06 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 1 -1 4
MONTH TO DATE 1 10 -9 13
SINCE SEP 1 1 10 -9 13
SINCE JUL 1 91 112 -21 143
COOLING
TODAY 5 2 3 0
MONTH TO DATE 18 16 2 3
SINCE SEP 1 18 16 2 3
SINCE JAN 1 68 126 -58 77
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 6.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 5:00 AM
LOWEST 52 2:00 PM
AVERAGE 75
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 92 1951
MINIMUM TEMPERATURE (F) 56 46 1946
SUNRISE AND SUNSET
SEPTEMBER 8 2025.....SUNRISE 6:46 AM PDT SUNSET 7:27 PM PDT
SEPTEMBER 9 2025.....SUNRISE 6:47 AM PDT SUNSET 7:26 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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