CXUS56 KMTR 010834 CLMSJC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1234 AM PST THU JAN 01 2026 ................................... ...THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1893 TO 2025 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 71 12/17 74 12/23 LOWEST 35 12/29 38 12/11 12/30 AVG. MAXIMUM 60.5 59.5 1.0 65.5 AVG. MINIMUM 45.0 41.7 3.3 46.6 MEAN 52.7 56.1 DAYS MAX >= 90 0 0 DAYS MAX <= 32 0 0 DAYS MIN <= 32 0 0 DAYS MIN <= 0 0 0 PRECIPITATION (INCHES) TOTALS 1.28 2.29 -1.01 1.54 DAILY AVG. 0.04 0.07 -0.03 0.07 DAYS >= .01 6 9 DAYS >= .10 3 3 DAYS >= .50 1 1 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.69 12/24 TO 12/25 0.52 12/13 TO 12/14 DEGREE DAYS HEATING TOTAL 373 446 -73 272 SINCE 7/1 633 814 -181 MM COOLING TOTAL 0 0 0 2 SINCE 1/1 602 624 -22 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 4.8 RESULTANT WIND SPEED/DIRECTION 1/170 HIGHEST WIND SPEED/DIRECTION 28/140 DATE 12/23 28/170 12/25 HIGHEST GUST SPEED/DIRECTION 41/180 DATE 12/25 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.52 NUMBER OF DAYS FAIR 7 NUMBER OF DAYS PC 17 NUMBER OF DAYS CLOUDY 7 AVERAGE RH (PERCENT) 76 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 3 LIGHT RAIN 6 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 22 FOG W/VIS <= 1/4 MILE 3 HAZE 18 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$