Climatological Report (Daily)
Issued by NWS
Issued by NWS
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979
CDUS46 KMTR 200825
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT SUN SEP 20 2026
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 19 2026...
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)
YESTERDAY
MAXIMUM 68 12:07 PM 93 2000 75 -7 72
MINIMUM 57 11:59 PM 46 1947 56 1 60
1954
AVERAGE 63 65 -2 66
PRECIPITATION (IN)
YESTERDAY 0.00 0.46 1977 0.00 0.00 0.00
MONTH TO DATE 0.01 0.02 -0.01 0.04
SINCE OCT 1 19.63 19.59 0.04 16.15
SINCE JAN 1 10.78 12.62 -1.84 7.59
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 2 2 0 0
MONTH TO DATE 6 22 -16 2
SINCE SEP 1 6 22 -16 2
SINCE JUL 1 80 124 -44 92
COOLING
YESTERDAY 0 2 -2 1
MONTH TO DATE 50 38 12 41
SINCE SEP 1 50 38 12 41
SINCE JAN 1 161 148 13 91
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 12.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 2:00 AM
LOWEST 66 12:00 PM
AVERAGE 78
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 1983
1990
2015
MINIMUM TEMPERATURE (F) 56 48 1947
1954
1965
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.
$$