866
CDUS46 KMTR 180027
CLISFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
527 PM PDT SUN MAY 17 2026
...............................
..THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR MAY 17 2026
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1850 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 71 3:43 PM 85 2009 64 7 59
MINIMUM 51 5:43 AM 44 1906 52 -1 50
AVERAGE 61 58 3 55
PRECIPITATION (IN)
TODAY 0.00 0.93 1879 0.02 -0.02 0.00
MONTH TO DATE 0.14 0.44 -0.30 0.15
SINCE OCT 1 20.02 22.26 -2.24 19.75
SINCE JAN 1 11.09 13.96 -2.87 9.55
DEGREE DAYS
HEATING
TODAY 4 8 -4 10
MONTH TO DATE 126 136 -10 127
SINCE MAR 1 437 698 -261 710
SINCE JUL 1 1922 2516 -594 2310
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 4
SINCE MAR 1 43 7 36 6
SINCE JAN 1 46 7 39 6
...............................................................
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 88 1892
MINIMUM TEMPERATURE (F) 52 46 1896
SUNRISE AND SUNSET
MAY 17 2026...........SUNRISE 5:58 AM PDT SUNSET 8:15 PM PDT
MAY 18 2026...........SUNRISE 5:57 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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