Climatological Report (Monthly)
Issued by NWS
Issued by NWS
675
CXUS56 KMTR 010842
CLMSFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
142 AM PDT SAT NOV 01 2025
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...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 99 10/05/1987
LOW 19 10/31/2024
HIGHEST 84 10/06 98 10/06
LOWEST 49 10/14 46 10/30
AVG. MAXIMUM 70.6 72.3 -1.7 74.4
AVG. MINIMUM 56.2 55.1
MEAN 63.4 62.9 0.5 64.7
DAYS MAX >= 90 0 4
DAYS MAX <= 32 0 0
DAYS MIN <= 32 0 MM
DAYS MIN <= 0 0 MM
PRECIPITATION (INCHES)
RECORD
MAXIMUM 7.30 1962
MINIMUM 0.00 2020
TOTALS 1.03 0.79 0.24 0.01
DAILY AVG. 0.03 0.03 0.00 0.00
DAYS >= .01 3 1
DAYS >= .10 2 0
DAYS >= .50 1 0
DAYS >= 1.00 0 0
GREATEST
24 HR. TOTAL 0.87 10/13 TO 10/13 0.01 10/31 TO 10/31
DEGREE DAYS
HEATING TOTAL 63 100 -37 88
SINCE 7/1 156 246 -90 MM
COOLING TOTAL 20 33 -13 86
SINCE 1/1 148 199 -51 MM
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WIND (MPH)
AVERAGE WIND SPEED 8.6
RESULTANT WIND SPEED/DIRECTION 6/280
HIGHEST WIND SPEED/DIRECTION 31/280 DATE 10/12
HIGHEST GUST SPEED/DIRECTION 42/290 DATE 10/12
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.41
NUMBER OF DAYS FAIR 14
NUMBER OF DAYS PC 12
NUMBER OF DAYS CLOUDY 5
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 2
LIGHT RAIN 6 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 18 FOG W/VIS <= 1/4 MILE 0
HAZE 23
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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