Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS56 KMTR 010842 CLMAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 142 AM PDT TUE AUG 01 2023 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF JULY 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 106 MM LOW 30 07/31/2017 HIGHEST 91 07/01 88 07/10 LOWEST 48 07/10 46 07/22 AVG. MAXIMUM 79.9 77.0 AVG. MINIMUM 54.9 54.6 MEAN 67.4 65.8 DAYS MAX >= 90 1 0 DAYS MAX <= 32 0 0 DAYS MIN <= 32 0 0 DAYS MIN <= 0 0 0 PRECIPITATION (INCHES) TOTALS TR 0.01 -0.01 T DAILY AVG. T T DAYS >= .01 0 0 DAYS >= .10 0 0 DAYS >= .50 0 0 DAYS >= 1.00 0 0 GREATEST 24 HR. TOTAL T 07/29 TO 07/29 T 07/31 TO 07/31 07/30 TO 07/30 07/31 TO 07/31 07/13 TO 07/13 07/31 TO 07/31 DEGREE DAYS HEATING TOTAL 7 16 SINCE 7/1 7 MM COOLING TOTAL 93 48 SINCE 1/1 111 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 9.4 RESULTANT WIND SPEED/DIRECTION 8/210 HIGHEST WIND SPEED/DIRECTION 24/190 DATE 07/23 HIGHEST GUST SPEED/DIRECTION 29/240 DATE 07/18 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.23 NUMBER OF DAYS FAIR 23 NUMBER OF DAYS PC 8 NUMBER OF DAYS CLOUDY 0 AVERAGE RH (PERCENT) 67 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 1 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 1 SLEET 0 FOG 2 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. $$