911
CDUS46 KMTR 040827
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
127 AM PDT MON AUG 04 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 3 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 69 4:27 PM 91 1998 73 -4 70
MINIMUM 56 5:30 AM 45 1954 56 0 54
AVERAGE 63 64 -1 62
PRECIPITATION (IN)
YESTERDAY 0.00 0.01 1953 0.00 0.00 T
MONTH TO DATE 0.00 0.00 0.00 T
SINCE OCT 1 16.11 19.53 -3.42 20.13
SINCE JAN 1 7.55 12.56 -5.01 14.80
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 2 2 0 3
MONTH TO DATE 8 6 2 11
SINCE JUN 1 220 161 59 174
SINCE JUL 1 77 64 13 61
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 3 -3 0
SINCE JUN 1 2 52 -50 49
SINCE JAN 1 8 72 -64 60
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 41 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 51 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 16.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 3:00 AM
LOWEST 55 4:00 PM
AVERAGE 71
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THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 87 1998
MINIMUM TEMPERATURE (F) 56 50 1945
1949
1966
SUNRISE AND SUNSET
AUGUST 4 2025........SUNRISE 6:16 AM PDT SUNSET 8:14 PM PDT
AUGUST 5 2025........SUNRISE 6:17 AM PDT SUNSET 8:13 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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