331
CDUS46 KMTR 210832
CLISFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
132 AM PDT THU MAY 21 2026
...............................
..THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR MAY 20 2026
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)
YESTERDAY
MAXIMUM 68 4:43 PM 92 1988 64 4 67
MINIMUM 53 11:43 PM 43 1899 52 1 51
AVERAGE 61 58 3 59
PRECIPITATION (IN)
YESTERDAY 0.00 0.91 1957 0.02 -0.02 0.00
MONTH TO DATE 0.14 0.50 -0.36 0.15
SINCE OCT 1 20.02 22.32 -2.30 19.75
SINCE JAN 1 11.09 14.02 -2.93 9.55
DEGREE DAYS
HEATING
YESTERDAY 4 7 -3 6
MONTH TO DATE 128 157 -29 144
SINCE MAR 1 439 719 -280 727
SINCE JUL 1 1924 2537 -613 2327
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 5 0 5 4
SINCE MAR 1 48 7 41 6
SINCE JAN 1 51 7 44 6
...............................................................
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 90 2000
MINIMUM TEMPERATURE (F) 52 45 1899
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 5:55 AM PDT SUNSET 8:18 PM PDT
MAY 22 2026...........SUNRISE 5:55 AM PDT SUNSET 8:19 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page