207
CDUS46 KMTR 070831
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
131 AM PDT SUN SEP 07 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 6 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 73 1:40 PM 102 2020 75 -2 70
MINIMUM 62 6:51 AM 47 1950 56 6 53
AVERAGE 68 66 2 62
PRECIPITATION (IN)
YESTERDAY 0.00 0.02 1969 0.01 -0.01 0.00
MONTH TO DATE 0.00 0.01 -0.01 0.00
SINCE OCT 1 16.11 19.58 -3.47 20.23
SINCE JAN 1 7.55 12.61 -5.06 14.90
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 3
MONTH TO DATE 1 8 -7 4
SINCE SEP 1 1 8 -7 4
SINCE JUL 1 91 110 -19 134
COOLING
YESTERDAY 3 2 1 0
MONTH TO DATE 9 12 -3 3
SINCE SEP 1 9 12 -3 3
SINCE JAN 1 59 122 -63 77
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WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 11.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 8:00 PM
LOWEST 55 12:00 PM
AVERAGE 70
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THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 97 2020
MINIMUM TEMPERATURE (F) 56 50 1960
SUNRISE AND SUNSET
SEPTEMBER 7 2025.....SUNRISE 6:45 AM PDT SUNSET 7:29 PM PDT
SEPTEMBER 8 2025.....SUNRISE 6:46 AM PDT SUNSET 7:27 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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