Climatological Report (Monthly)
Issued by NWS

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000
CXUS56 KMTR 010838
CLMAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT WED NOV 01 2023

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023

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           96   10/05                          90  10/19
                       10/07
LOWEST            33   10/27                          37  10/23
                                                          10/26
                                                          10/29
AVG. MAXIMUM    78.5                                74.6
AVG. MINIMUM    48.5                                47.0
MEAN            63.5                                60.8
DAYS MAX >= 90     5                                   1
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS          0.45               0.93   -0.48        T
DAILY AVG.      0.01                                0.00
DAYS >= .01        1                                   0
DAYS >= .10        1                                   0
DAYS >= .50        0                                   0
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.45   10/22 TO 10/22                  T  10/15 TO 10/15


DEGREE DAYS
HEATING TOTAL    102                                 133
 SINCE 7/1       129                                  MM
COOLING TOTAL     63                                  11
 SINCE 1/1       389                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.7
RESULTANT WIND SPEED/DIRECTION   3/230
HIGHEST WIND SPEED/DIRECTION    21/200    DATE  10/10
HIGHEST GUST SPEED/DIRECTION    27/200    DATE  10/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.19
NUMBER OF DAYS FAIR           25
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      5
HAZE                      8

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

$$


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