CXUS56 KMTR 011730 CLMSFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 930 AM PST SUN FEB 01 2026 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2026... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1927 TO 2026 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 74 01/31/2015 LOW 26 01/05/1949 HIGHEST 71 01/16 71 01/09 LOWEST 40 01/10 39 01/27 AVG. MAXIMUM 60.0 58.0 2.0 59.9 AVG. MINIMUM 46.6 45.2 MEAN 53.3 51.3 2.0 52.6 DAYS MAX >= 90 0 0 DAYS MAX <= 32 0 0 DAYS MIN <= 32 0 0 DAYS MIN <= 0 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 11.26 1993 MINIMUM 0.00 2015 TOTALS 3.78 3.89 -0.11 0.24 DAILY AVG. 0.12 0.13 -0.00 0.01 DAYS >= .01 7 3 DAYS >= .10 5 2 DAYS >= .50 3 0 DAYS >= 1.00 2 0 GREATEST 24 HR. TOTAL 1.49 01/03 TO 01/04 0.12 01/03 TO 01/03 DEGREE DAYS HEATING TOTAL 355 426 -71 379 SINCE 7/1 1085 1355 -270 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 0 0 0 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 5.4 RESULTANT WIND SPEED/DIRECTION 1/130 HIGHEST WIND SPEED/DIRECTION 36/210 DATE 01/03 HIGHEST GUST SPEED/DIRECTION 49/210 DATE 01/03 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.49 NUMBER OF DAYS FAIR 9 NUMBER OF DAYS PC 16 NUMBER OF DAYS CLOUDY 6 AVERAGE RH (PERCENT) 77 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 3 RAIN 3 LIGHT RAIN 8 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 26 FOG W/VIS <= 1/4 MILE 0 HAZE 30 - INDICATES NEGATIVE NUMBERS.R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$