Climatological Report (Daily)
Issued by NWS
Issued by NWS
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563
CDUS46 KMTR 190826
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT SUN JUL 19 2026
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 18 2026...
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)
YESTERDAY
MAXIMUM 74 3:59 PM 95 1998 79 -5 74
MINIMUM 53 11:34 PM 50 2009 55 -2 54
2012
AVERAGE 64 67 -3 64
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE T 0.00
SINCE OCT 1 17.03 16.08
SINCE JAN 1 9.60 8.10
DEGREE DAYS
HEATING
YESTERDAY 1 1
MONTH TO DATE 21 27
SINCE JUN 1 42 91
SINCE JUL 1 21 27
COOLING
YESTERDAY 0 0
MONTH TO DATE 35 8
SINCE JUN 1 74 16
SINCE JAN 1 91 33
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (230)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 9.1
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 93 11:00 PM
LOWEST 59 3:00 PM
AVERAGE 76
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 97 2024
MINIMUM TEMPERATURE (F) 55 47 2000
SUNRISE AND SUNSET
JULY 19 2026..........SUNRISE 6:01 AM PDT SUNSET 8:29 PM PDT
JULY 20 2026..........SUNRISE 6:02 AM PDT SUNSET 8:29 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$