Climatological Report (Daily)
Issued by NWS
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CDUS46 KMTR 170841
CLIAPC
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
141 AM PDT THU APR 17 2025
...................................
...THE NAPA AIRPORT CLIMATE SUMMARY FOR APRIL 16 2025...
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)
YESTERDAY
MAXIMUM 63 2:48 PM 83 1999 68 -5 73
MINIMUM 51 11:59 PM 29 2008 43 8 41
AVERAGE 57 56 1 57
PRECIPITATION (IN)
YESTERDAY T 0.00
MONTH TO DATE 0.23 0.96
SINCE OCT 1 15.85 19.19
SINCE JAN 1 7.87 13.15
DEGREE DAYS
HEATING
YESTERDAY 8 8
MONTH TO DATE 144 176
SINCE MAR 1 545 547
SINCE JUL 1 2400 2195
COOLING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE MAR 1 2 0
SINCE JAN 1 2 0
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (270)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 11.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 1:00 AM
LOWEST 64 12:00 PM
AVERAGE 75
..........................................................
THE NAPA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 82 2021
MINIMUM TEMPERATURE (F) 44 32 2004
2022
SUNRISE AND SUNSET
APRIL 17 2025.........SUNRISE 6:30 AM PDT SUNSET 7:48 PM PDT
APRIL 18 2025.........SUNRISE 6:29 AM PDT SUNSET 7:49 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$