


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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986 CDUS46 KMTR 190829 CLIAPC CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 129 AM PDT SAT APR 19 2025 ................................... ...THE NAPA AIRPORT CLIMATE SUMMARY FOR APRIL 18 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1998 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 67 3:30 PM 86 2021 69 -2 73 MINIMUM 45 11:59 PM 33 2005 44 1 MM AVERAGE 56 56 0 MM PRECIPITATION (IN) YESTERDAY 0.00 0.00 MONTH TO DATE 0.23 0.96 SINCE OCT 1 15.85 19.19 SINCE JAN 1 7.87 13.15 DEGREE DAYS HEATING YESTERDAY 9 MM MONTH TO DATE 160 180 SINCE MAR 1 561 551 SINCE JUL 1 2416 2199 COOLING YESTERDAY 0 MM MONTH TO DATE 0 0 SINCE MAR 1 2 0 SINCE JAN 1 2 0 ................................................................... WIND (MPH) RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION W (250) HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260) HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION W (260) AVERAGE WIND SPEED 8.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.5 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 92 3:00 AM LOWEST 68 4:00 PM AVERAGE 80 .......................................................... THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 69 87 2009 MINIMUM TEMPERATURE (F) 44 33 2007 SUNRISE AND SUNSET APRIL 19 2025.........SUNRISE 6:27 AM PDT SUNSET 7:50 PM PDT APRIL 20 2025.........SUNRISE 6:26 AM PDT SUNSET 7:50 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$