477
CDUS46 KMTR 180034
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
534 PM PDT THU SEP 17 2026
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 17 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 72 3:43 PM 94 1984 75 -3 81
MINIMUM 63 6:06 AM 50 1945 56 7 57
1946
1988
AVERAGE 68 65 3 69
PRECIPITATION (IN)
TODAY 0.00 0.28 1982 0.00 0.00 0.00
MONTH TO DATE 0.01 0.02 -0.01 0.02
SINCE OCT 1 19.63 19.59 0.04 16.13
SINCE JAN 1 10.78 12.62 -1.84 7.57
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 0
MONTH TO DATE 3 19 -16 2
SINCE SEP 1 3 19 -16 2
SINCE JUL 1 77 121 -44 92
COOLING
TODAY 3 2 1 4
MONTH TO DATE 52 34 18 40
SINCE SEP 1 52 34 18 40
SINCE JAN 1 163 144 19 90
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION W (250)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 7.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 1:00 AM
LOWEST 55 2:00 PM
AVERAGE 68
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 93 2009
MINIMUM TEMPERATURE (F) 56 46 1955
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 6:53 AM PDT SUNSET 7:14 PM PDT
SEPTEMBER 18 2026.....SUNRISE 6:54 AM PDT SUNSET 7:12 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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