756
CXUS56 KMTR 010829
CLMAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
129 AM PDT FRI AUG 01 2025

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR THE MONTH OF JULY 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            106   MM
 LOW              30   07/31/2017
HIGHEST           85   07/10                         102  07/02
LOWEST            44   07/05                          49  07/26
AVG. MAXIMUM    73.8                                83.1
AVG. MINIMUM    54.0                                56.2
MEAN            63.9                                69.6
DAYS MAX >= 90     0                                   6
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS             TR              0.01   -0.01     0.00
DAILY AVG.         T                                0.00
DAYS >= .01        0                                   0
DAYS >= .10        0                                   0
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL      T   07/21 TO 07/21                  T  07/07 TO 07/07
                       07/25 TO 07/25
                       07/26 TO 07/26


DEGREE DAYS
HEATING TOTAL     38                                   5
 SINCE 7/1        38                                  MM
COOLING TOTAL     12                                 158
 SINCE 1/1        37                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.2
RESULTANT WIND SPEED/DIRECTION   9/230
HIGHEST WIND SPEED/DIRECTION    26/190    DATE  07/15
HIGHEST GUST SPEED/DIRECTION    35/190    DATE  07/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.36
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

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

$$