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000
CXUS56 KMTR 010900
CLMAPC

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
200 AM PDT SUN OCT 01 2023

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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            115   MM
 LOW              35   09/29/2019
HIGHEST           85   09/27                         115  09/06
LOWEST            46   09/09                          48  09/28
                       09/23
AVG. MAXIMUM    77.5                                85.2
AVG. MINIMUM    54.1                                55.2
MEAN            65.8                                70.2
DAYS MAX >= 90     0                                   8
DAYS MAX <= 32     0                                   0
DAYS MIN <= 32     0                                   0
DAYS MIN <= 0      0                                   0

PRECIPITATION (INCHES)
TOTALS          0.12               0.07    0.05     0.61
DAILY AVG.      0.00                                0.02
DAYS >= .01        3                                   2
DAYS >= .10        0                                   1
DAYS >= .50        0                                   1
DAYS >= 1.00       0                                   0
GREATEST
 24 HR. TOTAL   0.07   09/30 TO 09/30               0.59  09/18 TO 09/18


DEGREE DAYS
HEATING TOTAL     19                                   5
 SINCE 7/1        27                                  MM
COOLING TOTAL     53                                 166
 SINCE 1/1       326                                  MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
RESULTANT WIND SPEED/DIRECTION   7/230
HIGHEST WIND SPEED/DIRECTION    24/200    DATE  09/21
                                24/280          09/27
HIGHEST GUST SPEED/DIRECTION    34/330    DATE  09/16

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.34
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      2
HAZE                     10

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

$$