306
CXUS56 KMTR 010831
CLMAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
131 AM PDT FRI MAY 01 2026

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR THE MONTH OF APRIL 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             91   MM
 LOW              30   04/12/2022
HIGHEST           83   04/05                          77  04/09
                                                          04/13
LOWEST            38   04/03                          35  04/02
                       04/14
AVG. MAXIMUM    68.8                                67.3
AVG. MINIMUM    44.2                                44.6
MEAN            56.5                                56.0
DAYS MAX >= 90     0                                  MM
DAYS MAX <= 32     0                                  MM
DAYS MIN <= 32     0                                  MM
DAYS MIN <= 0      0                                  MM

PRECIPITATION (INCHES)
TOTALS          3.52               1.26    2.26     0.26
DAILY AVG.      0.12                                0.01
DAYS >= .01        8                                  MM
DAYS >= .10        7                                  MM
DAYS >= .50        3                                  MM
DAYS >= 1.00       0                                  MM
GREATEST
 24 HR. TOTAL   1.24   04/20 TO 04/21               0.22  04/01 TO 04/01


DEGREE DAYS
HEATING TOTAL    248                                 265
 SINCE 7/1      2205                                  MM
COOLING TOTAL      0                                   0
 SINCE 1/1         8                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.0
RESULTANT WIND SPEED/DIRECTION   4/240
HIGHEST WIND SPEED/DIRECTION    30/190    DATE  04/11
HIGHEST GUST SPEED/DIRECTION    42/200    DATE  04/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.33
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      3
HAZE                      2

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

$$