996
CXUS56 KMTR 011730
CLMAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
930 AM PST SUN FEB 01 2026

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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             80   01/12/2009
 LOW              18   01/15/2007
HIGHEST           67   01/24                          70  01/07
LOWEST            31   01/09                          28  01/22
                                                          01/28
AVG. MAXIMUM    59.4                                60.4
AVG. MINIMUM    39.5                                35.0
MEAN            49.5                                47.7
DAYS MAX >= 90     0                                   0
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     2                                   9
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS          1.99               4.17   -2.18     0.89
DAILY AVG.      0.06                                0.03
DAYS >= .01        8                                   3
DAYS >= .10        5                                   2
DAYS >= .50        2                                   1
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.67   01/03 TO 01/04               0.61  01/31 TO 01/31


DEGREE DAYS
HEATING TOTAL    474                                 531
 SINCE 7/1      1454                                  MM
COOLING TOTAL      0                                   0
 SINCE 1/1         0                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.5
RESULTANT WIND SPEED/DIRECTION   3/090
HIGHEST WIND SPEED/DIRECTION    24/080    DATE  01/20
HIGHEST GUST SPEED/DIRECTION    35/090    DATE  01/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.28
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     81

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     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                      28     FOG W/VIS <= 1/4 MILE      7
HAZE                      7

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

$$