Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS56 KMTR 010829 CLMSFO CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 129 AM PDT THU JUN 01 2023 ................................... ...THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 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 97 05/27/1984 LOW 39 05/03/1950 HIGHEST 82 05/13 87 05/24 LOWEST 50 05/02 47 05/11 05/07 AVG. MAXIMUM 65.5 68.3 -2.8 68.6 AVG. MINIMUM 53.4 51.4 MEAN 59.4 59.9 -0.5 60.0 DAYS MAX >= 90 0 0 DAYS MAX <= 32 0 0 DAYS MIN <= 32 0 0 DAYS MIN <= 0 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 3.81 1957 MINIMUM 0.00 2008 TOTALS 0.72 0.48 0.24 T DAILY AVG. 0.02 0.02 0.00 T DAYS >= .01 5 0 DAYS >= .10 2 0 DAYS >= .50 0 0 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.49 05/02 TO 05/03 T 05/08 TO 05/08 DEGREE DAYS HEATING TOTAL 166 170 -4 156 SINCE 7/1 2521 2377 144 MM COOLING TOTAL 3 14 -11 9 SINCE 1/1 5 20 -15 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 11.7 RESULTANT WIND SPEED/DIRECTION 9/270 HIGHEST WIND SPEED/DIRECTION 31/260 DATE 05/01 31/290 05/16 HIGHEST GUST SPEED/DIRECTION 42/250 DATE 05/01 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.64 NUMBER OF DAYS FAIR 2 NUMBER OF DAYS PC 20 NUMBER OF DAYS CLOUDY 9 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 1 LIGHT RAIN 4 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 9 FOG W/VIS <= 1/4 MILE 0 HAZE 12 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$