Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 180829
CLISFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
129 AM PDT TUE AUG 18 2026
...................................
...THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR AUGUST 17 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 66 1:43 PM 92 1892 68 -2 66
MINIMUM 56 4:43 AM 49 1894 56 0 57
AVERAGE 61 62 -1 62
PRECIPITATION (IN)
YESTERDAY 0.00 0.06 1976 0.00 0.00 0.00
MONTH TO DATE 0.02 0.03 -0.01 0.03
SINCE OCT 1 20.73 22.76 -2.03 19.88
SINCE JAN 1 11.80 14.46 -2.66 9.68
DEGREE DAYS
HEATING
YESTERDAY 4 4 0 3
MONTH TO DATE 47 68 -21 58
SINCE JUN 1 295 389 -94 434
SINCE JUL 1 163 220 -57 221
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 1 0 1 1
SINCE JUN 1 22 19 3 1
SINCE JAN 1 73 34 39 7
...................................................................
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 88 1934
MINIMUM TEMPERATURE (F) 56 48 1898
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 6:28 AM PDT SUNSET 7:58 PM PDT
AUGUST 19 2026........SUNRISE 6:29 AM PDT SUNSET 7:57 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$