Climatological Report (Daily)
Issued by NWS
Issued by NWS
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729
CDUS46 KMTR 050038
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
538 PM PDT FRI JUL 04 2025
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 4 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 76 4:19 PM 93 2007 79 -3 88
MINIMUM 50 6:28 AM 45 1999 54 -4 57
AVERAGE 63 67 -4 73
PRECIPITATION (IN)
TODAY 0.00 0.00
MONTH TO DATE 0.00 0.00
SINCE OCT 1 16.08 19.88
SINCE JAN 1 8.10 13.84
DEGREE DAYS
HEATING
TODAY 2 0
MONTH TO DATE 10 0
SINCE JUN 1 74 37
SINCE JUL 1 10 0
COOLING
TODAY 0 8
MONTH TO DATE 0 41
SINCE JUN 1 8 97
SINCE JAN 1 25 107
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 11.8
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 89 5:00 AM
LOWEST 40 4:00 PM
AVERAGE 65
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 89 2007
2024
MINIMUM TEMPERATURE (F) 54 45 2018
SUNRISE AND SUNSET
JULY 4 2025..........SUNRISE 5:51 AM PDT SUNSET 8:36 PM PDT
JULY 5 2025..........SUNRISE 5:52 AM PDT SUNSET 8:36 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$