Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 100837
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
137 AM PDT SUN MAY 10 2026
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR MAY 9 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 5:04 PM 87 2025 72 2 87
MINIMUM 48 4:32 AM 33 2003 47 1 44
AVERAGE 61 59 2 66
PRECIPITATION (IN)
YESTERDAY 0.00 0.00
MONTH TO DATE 0.37 T
SINCE OCT 1 16.76 15.88
SINCE JAN 1 9.33 7.90
DEGREE DAYS
HEATING
YESTERDAY 4 0
MONTH TO DATE 47 45
SINCE MAR 1 454 711
SINCE JUL 1 2252 2566
COOLING
YESTERDAY 0 1
MONTH TO DATE 0 6
SINCE MAR 1 8 8
SINCE JAN 1 8 8
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (220)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 6.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 2:00 AM
LOWEST 59 3:00 PM
AVERAGE 80
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 94 2021
MINIMUM TEMPERATURE (F) 47 32 2022
SUNRISE AND SUNSET
MAY 10 2026...........SUNRISE 6:03 AM PDT SUNSET 8:09 PM PDT
MAY 11 2026...........SUNRISE 6:02 AM PDT SUNSET 8:10 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$