Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 180833
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
133 AM PDT SAT OCT 18 2025
...................................
...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR OCTOBER 17 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 75 3:11 PM 91 2020 72 3 66
MINIMUM 52 6:10 AM 42 1971 53 -1 55
AVERAGE 64 63 1 61
PRECIPITATION (IN)
YESTERDAY 0.00 0.18 2004 0.03 -0.03 0.00
MONTH TO DATE 1.00 0.30 0.70 T
SINCE OCT 1 1.00 0.30 0.70 T
SINCE JAN 1 8.62 12.97 -4.35 14.90
SNOWFALL (IN)
YESTERDAY MM 0.0
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
DEGREE DAYS
HEATING
YESTERDAY 1 3 -2 4
MONTH TO DATE 30 40 -10 29
SINCE SEP 1 33 86 -53 103
SINCE JUL 1 123 188 -65 233
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 14 25 -11 84
SINCE SEP 1 92 81 11 108
SINCE JAN 1 142 191 -49 182
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 5.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 1:00 AM
LOWEST 49 2:00 PM
AVERAGE 71
..........................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 86 2012
2023
MINIMUM TEMPERATURE (F) 53 42 1946
SUNRISE AND SUNSET
OCTOBER 18 2025.......SUNRISE 7:21 AM PDT SUNSET 6:28 PM PDT
OCTOBER 19 2025.......SUNRISE 7:22 AM PDT SUNSET 6:26 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$