170
CXUS56 KMTR 010908
CLMAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
208 AM PDT WED APR 01 2026

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR THE MONTH OF MARCH 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             87   MM
 LOW              28   03/05/2018
HIGHEST           87R  03/20                          84  03/25
LOWEST            37   03/05                          33  03/07
AVG. MAXIMUM    75.0                                62.8
AVG. MINIMUM    44.7                                41.1
MEAN            59.9                                51.9
DAYS MAX >= 90     0                                   0
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS          0.14R              3.01   -2.87     1.67
DAILY AVG.      0.00                                0.05
DAYS >= .01        2                                   8
DAYS >= .10        1                                   7
DAYS >= .50        0                                   1
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.13   03/31 TO 03/31               0.58  03/14 TO 03/14


DEGREE DAYS
HEATING TOTAL    159                                 401
 SINCE 7/1      1957                                  MM
COOLING TOTAL      8                                   2
 SINCE 1/1         8                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.0
RESULTANT WIND SPEED/DIRECTION   2/250
HIGHEST WIND SPEED/DIRECTION    35/010    DATE  03/06
HIGHEST GUST SPEED/DIRECTION    43/010    DATE  03/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.08
NUMBER OF DAYS FAIR           27
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     70

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

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

$$