Climatological Report (Daily)
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
CDUS46 KMTR 180025
CLIAPC


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
525 PM PDT THU AUG 17 2017


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

...THE NAPA AIRPORT  CLIMATE SUMMARY FOR AUGUST 17 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         79    246 PM  86    2007  80     -1       76
  MINIMUM         57    525 AM  45    2007  52      5       53
  AVERAGE         68                        66      2       65

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                                         0
  MONTH TO DATE    2                                        17
  SINCE JUN 1     27                                        80
  SINCE JUL 1     10                                        54

 COOLING
  TODAY            3                                         0
  MONTH TO DATE   58                                         9
  SINCE JUN 1    292                                        94
  SINCE JAN 1    326                                       105
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   7   RESULTANT WIND DIRECTION  SW (230)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     9.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           500 AM
 LOWEST     54           100 PM
 AVERAGE    74

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


THE NAPA AIRPORT  CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   80        91      2013
 MINIMUM TEMPERATURE (F)   52        46      2007


SUNRISE AND SUNSET
AUGUST 17 2017........SUNRISE   626 AM PDT   SUNSET   800 PM PDT
AUGUST 18 2017........SUNRISE   627 AM PDT   SUNSET   758 PM PDT


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




$$




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.