Climatological Report (Daily)
Issued by NWS

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000
CDUS46 KMTR 210025
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
525 PM PDT THU JUL 20 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR JULY 20 2017...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         82    344 PM  89    2011  78      4       77
  MINIMUM         54    448 AM  47    2016  53      1       47
  AVERAGE         68                        65      3       62

PRECIPITATION (IN)
  TODAY            0.00                                      0.00
  MONTH TO DATE    T                                         0.00
  SINCE OCT 1     37.11                                     18.86
  SINCE JAN 1     28.16                                     14.67

DEGREE DAYS
 HEATING
  TODAY            0                                         3
  MONTH TO DATE    2                                        32
  SINCE JUN 1     19                                        58
  SINCE JUL 1      2                                        32

 COOLING
  TODAY            3                                         0
  MONTH TO DATE   82                                        17
  SINCE JUN 1    205                                        68
  SINCE JAN 1    239                                        79
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION  SW (220)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     9.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           600 AM
 LOWEST     42           200 PM
 AVERAGE    64

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        94      2012
 MINIMUM TEMPERATURE (F)   53        48      2001


SUNRISE AND SUNSET
JULY 20 2017..........SUNRISE   602 AM PDT   SUNSET   829 PM PDT
JULY 21 2017..........SUNRISE   603 AM PDT   SUNSET   828 PM PDT


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




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