496
CDUS46 KMTR 200834
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
134 AM PDT WED MAY 20 2026
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 19 2026
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)
YESTERDAY
MAXIMUM 82 12:25 PM 86 1952 69 13 70
1978
1983
MINIMUM 54 5:10 AM 42 1950 52 2 52
AVERAGE 68 60 8 61
PRECIPITATION (IN)
YESTERDAY 0.00 0.30 1961 0.01 -0.01 0.00
MONTH TO DATE 0.11 0.33 -0.22 0.11
SINCE OCT 1 19.38 19.24 0.14 16.11
SINCE JAN 1 10.53 12.27 -1.74 7.55
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE MAR 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 0 5 -5 4
MONTH TO DATE 100 114 -14 102
SINCE MAR 1 373 644 -271 656
SINCE JUL 1 1721 2323 -602 2189
COOLING
YESTERDAY 3 0 3 0
MONTH TO DATE 6 0 6 2
SINCE MAR 1 42 6 36 5
SINCE JAN 1 43 6 37 5
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 9.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72 11:00 PM
LOWEST 21 12:00 PM
AVERAGE 47
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 93 1988
MINIMUM TEMPERATURE (F) 52 45 1950
1976
1982
SUNRISE AND SUNSET
MAY 20 2026...........SUNRISE 5:56 AM PDT SUNSET 8:17 PM PDT
MAY 21 2026...........SUNRISE 5:55 AM PDT SUNSET 8:17 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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