Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 170825
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
125 AM PDT FRI JUL 17 2026
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR JULY 16 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 82 4:44 PM 103 2017 79 3 72
MINIMUM 54 6:13 AM 48 2009 55 -1 57
AVERAGE 68 67 1 65
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 0 0
MONTH TO DATE 20 26
SINCE JUN 1 41 90
SINCE JUL 1 20 26
COOLING
YESTERDAY 3 0
MONTH TO DATE 35 8
SINCE JUN 1 74 16
SINCE JAN 1 91 33
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 12.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83 11:00 PM
LOWEST 31 3:00 PM
AVERAGE 57
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 99 2003
MINIMUM TEMPERATURE (F) 55 47 2009
SUNRISE AND SUNSET
JULY 17 2026..........SUNRISE 6:00 AM PDT SUNSET 8:31 PM PDT
JULY 18 2026..........SUNRISE 6:00 AM PDT SUNSET 8:30 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$