Climatological Report (Daily)
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217
CDUS46 KMTR 130838
CLISTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT THU AUG 13 2026

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR AUGUST 12 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         78   2:24 PM 102    2009  84     -6       80
  MINIMUM         54   7:07 AM  46    2009  52      2       55
  AVERAGE         66                        68     -2       68

PRECIPITATION (IN)
  YESTERDAY        0.00          T    2012   0.00   0.00     0.00
  MONTH TO DATE    0.00                      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        1                                         3
  MONTH TO DATE   56                                        62
  SINCE JUN 1    239                                       145
  SINCE JAN 1    278                                       182
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   S (180)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (160)
  AVERAGE WIND SPEED     5.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           1:00 AM
 LOWEST     47           3:00 PM
 AVERAGE    72

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84        97      2020
 MINIMUM TEMPERATURE (F)   52        44      2007


SUNRISE AND SUNSET
AUGUST 13 2026........SUNRISE   6:24 AM PDT   SUNSET   8:08 PM PDT
AUGUST 14 2026........SUNRISE   6:25 AM PDT   SUNSET   8:06 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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