850
CDUS46 KMTR 200836
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
136 AM PDT SUN JUL 20 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JULY 19 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 66 3:10 PM 90 1961 73 -7 81
MINIMUM 56 11:59 PM 49 1981 56 0 54
AVERAGE 61 64 -3 68
PRECIPITATION (IN)
YESTERDAY 0.00 T 1975 0.00 0.00 0.00
1977
1978
MONTH TO DATE 0.00 0.00 0.00 0.00
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 4 2 2 0
MONTH TO DATE 53 38 15 19
SINCE JUN 1 196 135 61 132
SINCE JUL 1 53 38 15 19
COOLING
YESTERDAY 0 1 -1 3
MONTH TO DATE 0 19 -19 34
SINCE JUN 1 1 42 -41 40
SINCE JAN 1 7 62 -55 51
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 13.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 3:00 AM
LOWEST 63 3:00 PM
AVERAGE 78
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 93 1996
MINIMUM TEMPERATURE (F) 56 49 1949
1953
1981
SUNRISE AND SUNSET
JULY 20 2025..........SUNRISE 6:04 AM PDT SUNSET 8:27 PM PDT
JULY 21 2025..........SUNRISE 6:05 AM PDT SUNSET 8:27 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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