Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS56 KMTR 010900 CLMSFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 200 AM PDT SUN OCT 01 2023 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1927 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 104 09/02/2017 09/01/2017 02/13/2353849 LOW 41 09/30/1950 HIGHEST 77 09/25 97 09/05 09/26 LOWEST 55 09/10 55 09/01 09/23 09/24 09/02 AVG. MAXIMUM 73.3 74.8 -1.5 77.1 AVG. MINIMUM 58.9 59.2 MEAN 66.1 65.3 0.8 68.2 DAYS MAX >= 90 0 3 DAYS MAX <= 32 0 0 DAYS MIN <= 32 0 0 DAYS MIN <= 0 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 2.30 1959 MINIMUM 0.00 2021 TOTALS 0.03 0.07 -0.04 0.27 DAILY AVG. 0.00 0.00 -0.00 0.01 DAYS >= .01 2 3 DAYS >= .10 0 2 DAYS >= .50 0 0 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.02 09/30 TO 09/30 0.16 09/21 TO 09/21 DEGREE DAYS HEATING TOTAL 6 46 -40 13 SINCE 7/1 53 146 -93 MM COOLING TOTAL 48 56 -8 114 SINCE 1/1 187 166 21 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 10.1 RESULTANT WIND SPEED/DIRECTION 8/280 HIGHEST WIND SPEED/DIRECTION 31/280 DATE 09/27 HIGHEST GUST SPEED/DIRECTION 43/270 DATE 09/11 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.39 NUMBER OF DAYS FAIR 15 NUMBER OF DAYS PC 14 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 70 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 0 LIGHT RAIN 3 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 10 FOG W/VIS <= 1/4 MILE 0 HAZE 22 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$