Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 010042
CLISFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
542 PM PDT SUN AUG 31 2025
...................................
...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 31 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1850 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 82 11:43 AM 87 1943 69 13 66
MINIMUM 60 6:43 AM 48 1910 56 4 58
AVERAGE 71 62 9 62
PRECIPITATION (IN)
TODAY 0.00 0.02 1944 0.00 0.00 0.00
MONTH TO DATE 0.03 0.06 -0.03 0.04
SINCE OCT 1 19.88 22.79 -2.91 25.76
SINCE JAN 1 9.68 14.49 -4.81 19.08
DEGREE DAYS
HEATING
TODAY 0 4 -4 3
MONTH TO DATE 82 119 -37 93
SINCE JUN 1 458 440 18 343
SINCE JUL 1 245 271 -26 188
COOLING
TODAY 6 1 5 0
MONTH TO DATE 13 16 -3 9
SINCE JUN 1 13 35 -22 22
SINCE JAN 1 19 50 -31 28
...................................................................
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 106 2017
MINIMUM TEMPERATURE (F) 56 48 1910
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:39 AM PDT SUNSET 7:40 PM PDT
SEPTEMBER 1 2025.....SUNRISE 6:40 AM PDT SUNSET 7:38 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$