Climatological Report (Daily)
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838
CDUS46 KMTR 010039
CLISTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
539 PM PDT MON AUG 31 2026

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR AUGUST 31 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         75   2:40 PM 100    2017  85    -10       99
  MINIMUM         50   3:02 AM  43    2008  51     -1       49
  AVERAGE         63                        68     -5       74

PRECIPITATION (IN)
  TODAY            0.00          0.01 2010   0.00   0.00     0.00
  MONTH TO DATE    T                         0.05  -0.05      T
  SINCE OCT 1     26.30                     33.65  -7.35    41.12
  SINCE JAN 1     13.41                     21.66  -8.25    15.53

DEGREE DAYS
 HEATING
  TODAY            2                                         0
  MONTH TO DATE    5                                         0
  SINCE JUN 1     33                                        61
  SINCE JUL 1     13                                        17

 COOLING
  TODAY            0                                         9
  MONTH TO DATE  119                                       159
  SINCE JUN 1    302                                       242
  SINCE JAN 1    341                                       279
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   S (170)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     4.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           1:00 AM
 LOWEST     48           2:00 PM
 AVERAGE    74

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   85       110      2017
 MINIMUM TEMPERATURE (F)   51        46      1999
                                             2022


SUNRISE AND SUNSET
AUGUST 31 2026........SUNRISE   6:40 AM PDT   SUNSET   7:42 PM PDT
SEPTEMBER  1 2026.....SUNRISE   6:41 AM PDT   SUNSET   7:41 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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