Climatological Report (Daily)
Issued by NWS
Issued by NWS
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339
CDUS46 KMTR 100840
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
140 AM PDT THU SEP 10 2026
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 9 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 94R 2:49 PM 92 1951 75 19 73
MINIMUM 66 6:08 AM 46 1946 56 10 64
AVERAGE 80 66 14 69
PRECIPITATION (IN)
YESTERDAY 0.00 0.26 1978 0.00 0.00 0.02
MONTH TO DATE 0.01 0.01 0.00 0.02
SINCE OCT 1 19.63 19.58 0.05 16.13
SINCE JAN 1 10.78 12.61 -1.83 7.57
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 11 -11 1
SINCE SEP 1 0 11 -11 1
SINCE JUL 1 74 113 -39 91
COOLING
YESTERDAY 15 2 13 4
MONTH TO DATE 36 18 18 22
SINCE SEP 1 36 18 18 22
SINCE JAN 1 147 128 19 72
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (310)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 8:00 AM
LOWEST 19 4:00 PM
AVERAGE 48
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 94 1979
MINIMUM TEMPERATURE (F) 56 49 1947
SUNRISE AND SUNSET
SEPTEMBER 10 2026.....SUNRISE 6:47 AM PDT SUNSET 7:25 PM PDT
SEPTEMBER 11 2026.....SUNRISE 6:48 AM PDT SUNSET 7:23 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$