369
CDUS46 KMTR 020828
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
128 AM PDT TUE SEP 02 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 1 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 76 2:10 PM 104 2017 75 1 72
MINIMUM 57 6:34 AM 49 1957 56 1 57
1981
AVERAGE 67 65 2 65
PRECIPITATION (IN)
YESTERDAY 0.00 0.07 2000 0.00 0.00 0.00
MONTH TO DATE 0.00 0.00 0.00 0.00
SINCE OCT 1 16.11 19.57 -3.46 20.23
SINCE JAN 1 7.55 12.60 -5.05 14.90
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE MM
SINCE SEP 1 MM
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 0 2 -2 0
SINCE SEP 1 0 2 -2 0
SINCE JUL 1 90 104 -14 130
COOLING
YESTERDAY 2 2 0 0
MONTH TO DATE 2 2 0 0
SINCE SEP 1 2 2 0 0
SINCE JAN 1 52 112 -60 74
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 15 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 14.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 50 12:00 PM
AVERAGE 73
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THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 104 2017
MINIMUM TEMPERATURE (F) 56 49 1946
SUNRISE AND SUNSET
SEPTEMBER 2 2025.....SUNRISE 6:41 AM PDT SUNSET 7:36 PM PDT
SEPTEMBER 3 2025.....SUNRISE 6:42 AM PDT SUNSET 7:35 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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