Climatological Report (Monthly)
Issued by NWS

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000
CXUS56 KMTR 061420
CLMAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
720 AM PDT THU JUL 6 2017

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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR THE MONTH OF JUNE 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             110   MM
 LOW               39   06/06/2012
HIGHEST           103   06/18                         94  06/03
LOWEST             43   06/12                         45  06/19
                                                          06/11
AVG. MAXIMUM     81.8                               79.8
AVG. MINIMUM     54.8                               51.4
MEAN             68.3                               65.6
DAYS MAX >= 90      5                                  1
DAYS MAX <= 32      0                                  0
DAYS MIN <= 32      0                                  0
DAYS MIN <= 0       0                                  0

PRECIPITATION (INCHES)
TOTALS           0.26              0.19    0.07        T
DAILY AVG.       0.01                                  T
DAYS >= .01         2                                  0
DAYS >= .10         1                                  0
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.22   06/08 TO 06/08           06/17 TO 06/17
                                                          06/30 TO 06/30
                                                          06/30 TO 06/30

DEGREE_DAYS
HEATING TOTAL      17                                 26
 SINCE 7/1       2478                               2609
COOLING TOTAL     123                                 51
 SINCE 1/1        157                                 62
.................................................

WIND (MPH)
AVERAGE WIND SPEED              9.5
RESULTANT WIND SPEED/DIRECTION   8/224
HIGHEST WIND SPEED/DIRECTION    29/340    DATE  06/11
HIGHEST GUST SPEED/DIRECTION    37/340    DATE  06/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      1
HAZE                     10

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

$$



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