Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 210032
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
532 PM PDT SUN SEP 20 2026
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 64 3:47 PM 93 1983 75 -11 72
1990
2015
MINIMUM 57 8:08 AM 48 1947 56 1 62
1954
1965
AVERAGE 61 65 -4 67
PRECIPITATION (IN)
TODAY 0.00 0.08 2005 0.01 -0.01 0.00
MONTH TO DATE 0.01 0.03 -0.02 0.04
SINCE OCT 1 19.63 19.60 0.03 16.15
SINCE JAN 1 10.78 12.63 -1.85 7.59
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 4 2 2 0
MONTH TO DATE 10 24 -14 2
SINCE SEP 1 10 24 -14 2
SINCE JUL 1 84 126 -42 92
COOLING
TODAY 0 2 -2 2
MONTH TO DATE 50 40 10 43
SINCE SEP 1 50 40 10 43
SINCE JAN 1 161 150 11 93
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 10.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 12:00 AM
LOWEST 70 2:00 PM
AVERAGE 80
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 95 2003
MINIMUM TEMPERATURE (F) 56 45 1955
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 6:56 AM PDT SUNSET 7:09 PM PDT
SEPTEMBER 21 2026.....SUNRISE 6:57 AM PDT SUNSET 7:08 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$