Climatological Report (Daily)
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000
CDUS46 KMTR 130827
CLISTS


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1227 AM PST WED DEC 13 2017


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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 2017...

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)
 YESTERDAY
  MAXIMUM         64R   313 PM  60    2013  56      8       56
  MINIMUM         28    733 AM  24    2013  37     -9       38
  AVERAGE         46                        46      0       47

PRECIPITATION (IN)
  YESTERDAY        0.00          0.63 2009   0.21  -0.21     0.00
  MONTH TO DATE    0.04                      2.09  -2.05     2.34
  SINCE OCT 1      6.27                      8.81  -2.54    14.01
  SINCE JAN 1     48.25                     31.34  16.91    37.57

DEGREE DAYS
 HEATING
  YESTERDAY       19                                        18
  MONTH TO DATE  208                                       205
  SINCE DEC 1    208                                       205
  SINCE JUL 1    657                                       698

 COOLING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE DEC 1      0                                         0
  SINCE JAN 1    635                                       356
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   W (290)
  HIGHEST WIND SPEED     6   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED     9   HIGHEST GUST DIRECTION    SE (120)
  AVERAGE WIND SPEED     0.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.1


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     36           300 PM
 AVERAGE    68

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        63      2013
 MINIMUM TEMPERATURE (F)   36        25      2013


SUNRISE AND SUNSET
DECEMBER 13 2017......SUNRISE   720 AM PST   SUNSET   451 PM PST
DECEMBER 14 2017......SUNRISE   721 AM PST   SUNSET   451 PM PST


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




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