750
CXUS56 KMTR 010842
CLMAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
142 AM PDT SAT NOV 01 2025

...................................

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            101   MM
 LOW              32   10/31/2019
                       10/27/2011
                       01/01/2000
HIGHEST           88   10/07                         100  10/02
LOWEST            40   10/12                          36  10/29
AVG. MAXIMUM    73.1                                79.4
AVG. MINIMUM    48.6                                48.3
MEAN            60.9                                63.9
DAYS MAX >= 90     0                                   6
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS          1.31               0.93    0.38     0.01
DAILY AVG.      0.04                                0.00
DAYS >= .01        6                                   1
DAYS >= .10        1                                   0
DAYS >= .50        1                                   0
DAYS >= 1.00       1                                   0
GREATEST
 24 HR. TOTAL   1.02   10/13 TO 10/14               0.01  10/30 TO 10/31


DEGREE DAYS
HEATING TOTAL    129                                 115
 SINCE 7/1       176                                  MM
COOLING TOTAL     10                                  85
 SINCE 1/1       211                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
RESULTANT WIND SPEED/DIRECTION   3/230
HIGHEST WIND SPEED/DIRECTION    26/200    DATE  10/26
HIGHEST GUST SPEED/DIRECTION    35/190    DATE  10/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.34
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      19     FOG W/VIS <= 1/4 MILE      8
HAZE                      2

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$