Climatological Report (Daily)
Issued by NWS
Issued by NWS
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993
CDUS46 KMTR 220030
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
530 PM PDT TUE JUL 21 2026
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 21 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 89 4:17 PM 94 2012 78 11 75
MINIMUM 62 6:03 AM 48 2001 55 7 56
AVERAGE 76 67 9 66
PRECIPITATION (IN)
TODAY 0.00 T
MONTH TO DATE T T
SINCE OCT 1 17.03 16.08
SINCE JAN 1 9.60 8.10
DEGREE DAYS
HEATING
TODAY 0 0
MONTH TO DATE 23 31
SINCE JUN 1 44 95
SINCE JUL 1 23 31
COOLING
TODAY 11 1
MONTH TO DATE 50 9
SINCE JUN 1 89 17
SINCE JAN 1 106 34
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION S (190)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 7.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 2:00 AM
LOWEST 21 3:00 PM
AVERAGE 54
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 106 2006
MINIMUM TEMPERATURE (F) 55 44 2016
SUNRISE AND SUNSET
JULY 21 2026..........SUNRISE 6:03 AM PDT SUNSET 8:28 PM PDT
JULY 22 2026..........SUNRISE 6:04 AM PDT SUNSET 8:27 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$