Climatological Report (Daily)
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120
CDUS46 KMTR 060045
CLISTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
445 PM PST FRI DEC 05 2025

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 5 2025...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         55   3:52 PM  70    2024  59     -4       70
  MINIMUM         34   6:50 AM  24    2013  37     -3       43
  AVERAGE         45                        48     -3       57

PRECIPITATION (IN)
  TODAY            0.00          1.05 2010   0.20  -0.20     0.00
  MONTH TO DATE    0.00                      0.96  -0.96     0.01
  SINCE OCT 1      6.84                      6.19   0.65    15.92
  SINCE JAN 1     22.74                     27.98  -5.24    41.41

DEGREE DAYS
 HEATING
  TODAY           20                                         8
  MONTH TO DATE   84                                        58
  SINCE DEC 1     84                                        58
  SINCE JUL 1    529                                       566

 COOLING
  TODAY            0                                         0
  MONTH TO DATE    0                                         0
  SINCE DEC 1      0                                         0
  SINCE JAN 1    401                                       705
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   1   RESULTANT WIND DIRECTION   S (170)
  HIGHEST WIND SPEED     8   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     2.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          12:00 AM
 LOWEST     69           3:00 PM
 AVERAGE    85

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   58        71      2024
 MINIMUM TEMPERATURE (F)   37        22      2013


SUNRISE AND SUNSET
DECEMBER  5 2025......SUNRISE   7:14 AM PST   SUNSET   4:50 PM PST
DECEMBER  6 2025......SUNRISE   7:15 AM PST   SUNSET   4:50 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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