Climatological Report (Monthly)
Issued by NWS
Issued by NWS
434 CXUS56 KMTR 010853 CLMSJC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1253 AM PST MON JAN 01 2024 ................................... ...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1893 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 79 12/12/1958 LOW 19 12/23/1990 12/22/1990 HIGHEST 72 12/28 64 12/30 LOWEST 37 12/10 51 12/31 AVG. MAXIMUM 64.8 59.5 5.3 63.0 AVG. MINIMUM 46.4 41.7 4.7 55.5 MEAN 55.6 59.3 DAYS MAX >= 90 0 0 DAYS MAX <= 32 0 0 DAYS MIN <= 32 0 0 DAYS MIN <= 0 0 0 PRECIPITATION (INCHES) TOTALS 2.76 2.29 0.47 4.70 DAILY AVG. 0.09 0.07 0.02 0.15 DAYS >= .01 10 MM DAYS >= .10 6 MM DAYS >= .50 2 MM DAYS >= 1.00 0 MM GREATEST 24 HR. TOTAL 0.96 12/29 TO 12/30 0.52 12/31 TO 12/31 DEGREE DAYS HEATING TOTAL 284 446 -162 3 SINCE 7/1 477 814 -337 MM COOLING TOTAL 0 0 0 0 SINCE 1/1 808 624 184 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 4.3 RESULTANT WIND SPEED/DIRECTION 1/150 HIGHEST WIND SPEED/DIRECTION 25/090 DATE 12/17 HIGHEST GUST SPEED/DIRECTION 33/090 DATE 12/17 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.54 NUMBER OF DAYS FAIR 7 NUMBER OF DAYS PC 16 NUMBER OF DAYS CLOUDY 8 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 4 RAIN 5 LIGHT RAIN 10 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 14 FOG W/VIS <= 1/4 MILE 0 HAZE 15 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$