874
CDUS46 KMTR 180027
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
527 PM PDT SUN MAY 17 2026
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR MAY 17 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 68 2:14 PM 93 1997 68 0 63
2009
MINIMUM 50 5:12 AM 45 1966 52 -2 52
AVERAGE 59 60 -1 58
PRECIPITATION (IN)
TODAY 0.00 0.24 1994 0.01 -0.01 0.00
MONTH TO DATE 0.11 0.30 -0.19 0.11
SINCE OCT 1 19.38 19.21 0.17 16.11
SINCE JAN 1 10.53 12.24 -1.71 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 6 5 1 7
MONTH TO DATE 103 104 -1 91
SINCE MAR 1 376 634 -258 645
SINCE JUL 1 1724 2313 -589 2178
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 2
SINCE MAR 1 36 6 30 5
SINCE JAN 1 37 6 31 5
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 15 RESULTANT WIND DIRECTION W (280)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 15.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 5:00 AM
LOWEST 42 2:00 PM
AVERAGE 61
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 85 1978
MINIMUM TEMPERATURE (F) 52 42 1950
1974
SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE 5:58 AM PDT SUNSET 8:14 PM PDT
MAY 18 2026...........SUNRISE 5:58 AM PDT SUNSET 8:15 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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