517
CDUS46 KMTR 050045
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
545 PM PDT MON AUG 04 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR AUGUST 4 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 73 2:09 PM 87 1998 73 0 64
MINIMUM 57 3:01 AM 50 1945 56 1 54
1949
1966
AVERAGE 65 64 1 59
PRECIPITATION (IN)
TODAY 0.00 T 2015 0.00 0.00 T
2017
2024
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)
TODAY MM 0.0
MONTH TO DATE T
SINCE JUN 1 T
SINCE JUL 1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 2 -2 6
MONTH TO DATE 8 8 0 17
SINCE JUN 1 220 163 57 180
SINCE JUL 1 77 66 11 67
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 0 4 -4 0
SINCE JUN 1 2 53 -51 49
SINCE JAN 1 8 73 -65 60
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 20 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 19.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 12:00 AM
LOWEST 35 2:00 PM
AVERAGE 58
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 89 1964
MINIMUM TEMPERATURE (F) 56 49 1950
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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