Climatological Report (Daily)
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929
CDUS46 KMTR 170829
CLISTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
129 AM PDT MON AUG 17 2026

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR AUGUST 16 2026...

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)
 YESTERDAY
  MAXIMUM         85   3:18 PM 104    2015  84      1       90
  MINIMUM         55  10:37 PM  47    2009  52      3       57
  AVERAGE         70                        68      2       74

PRECIPITATION (IN)
  YESTERDAY        0.00          0.06 2020   0.00   0.00     0.00
  MONTH TO DATE    T                         0.01  -0.01      T
  SINCE OCT 1     26.30                     33.61  -7.31    41.12
  SINCE JAN 1     13.41                     21.62  -8.21    15.53

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE JUN 1     28                                        61
  SINCE JUL 1      8                                        17

 COOLING
  YESTERDAY        5                                         9
  MONTH TO DATE   63                                        88
  SINCE JUN 1    246                                       171
  SINCE JAN 1    285                                       208
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION  SE (150)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     5.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           2:00 AM
 LOWEST     37           4:00 PM
 AVERAGE    69

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84        98      2015
 MINIMUM TEMPERATURE (F)   52        44      2009


SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE   6:28 AM PDT   SUNSET   8:02 PM PDT
AUGUST 18 2026........SUNRISE   6:28 AM PDT   SUNSET   8:01 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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