CXUS56 KMTR 011730 CLMAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 930 AM PST SUN FEB 01 2026 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2026... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2026 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 80 01/12/2009 LOW 18 01/15/2007 HIGHEST 67 01/24 70 01/07 LOWEST 31 01/09 28 01/22 01/28 AVG. MAXIMUM 59.4 60.4 AVG. MINIMUM 39.5 35.0 MEAN 49.5 47.7 DAYS MAX >= 90 0 0 DAYS MAX <= 32 0 0 DAYS MIN <= 32 2 9 DAYS MIN <= 0 0 0 PRECIPITATION (INCHES) TOTALS 1.99 4.17 -2.18 0.89 DAILY AVG. 0.06 0.03 DAYS >= .01 8 3 DAYS >= .10 5 2 DAYS >= .50 2 1 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL 0.67 01/03 TO 01/04 0.61 01/31 TO 01/31 DEGREE DAYS HEATING TOTAL 474 531 SINCE 7/1 1454 MM COOLING TOTAL 0 0 SINCE 1/1 0 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 6.5 RESULTANT WIND SPEED/DIRECTION 3/090 HIGHEST WIND SPEED/DIRECTION 24/080 DATE 01/20 HIGHEST GUST SPEED/DIRECTION 35/090 DATE 01/20 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.28 NUMBER OF DAYS FAIR 22 NUMBER OF DAYS PC 3 NUMBER OF DAYS CLOUDY 6 AVERAGE RH (PERCENT) 81 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 2 RAIN 5 LIGHT RAIN 9 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 28 FOG W/VIS <= 1/4 MILE 7 HAZE 7 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$