727
CDUS46 KMTR 220026
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
526 PM PDT THU MAY 21 2026
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 21 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 70 12:42 PM 92 2000 69 1 72
MINIMUM 52 5:38 AM 45 1962 52 0 49
1974
AVERAGE 61 60 1 61
PRECIPITATION (IN)
TODAY 0.00 0.24 2006 0.01 -0.01 0.00
MONTH TO DATE 0.11 0.36 -0.25 0.11
SINCE OCT 1 19.38 19.27 0.11 16.11
SINCE JAN 1 10.53 12.30 -1.77 7.55
SNOWFALL (IN)
TODAY MM 0.0
MONTH TO DATE T
SINCE MAR 1 T
SINCE JUL 1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 4 5 -1 4
MONTH TO DATE 106 124 -18 113
SINCE MAR 1 379 654 -275 667
SINCE JUL 1 1727 2333 -606 2200
COOLING
TODAY 0 0 0 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 11 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 11.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 5:00 AM
LOWEST 51 12:00 PM
AVERAGE 70
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 83 1954
MINIMUM TEMPERATURE (F) 52 44 1952
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 5:55 AM PDT SUNSET 8:17 PM PDT
MAY 22 2026...........SUNRISE 5:55 AM PDT SUNSET 8:18 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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