Climatological Report (Daily)
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260
CDUS46 KMTR 100840
CLISTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
140 AM PDT THU SEP 10 2026

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 9 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         98   2:45 PM 102    2015  84     14       72
  MINIMUM         56   4:32 AM  39    2012  50      6       60
  AVERAGE         77                        67     10       66

PRECIPITATION (IN)
  YESTERDAY        0.00          0.10 2025   0.00   0.00     0.10
  MONTH TO DATE    0.24                      0.01   0.23     0.12
  SINCE OCT 1     26.54                     33.66  -7.12    41.24
  SINCE JAN 1     13.65                     21.67  -8.02    15.65

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    8                                         0
  SINCE SEP 1      8                                         0
  SINCE JUL 1     21                                        17

 COOLING
  YESTERDAY       12                                         1
  MONTH TO DATE   27                                        30
  SINCE SEP 1     27                                        30
  SINCE JAN 1    368                                       309
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   2   RESULTANT WIND DIRECTION   W (270)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     3.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75           1:00 AM
 LOWEST     16           3:00 PM
 AVERAGE    46

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       102      2015
 MINIMUM TEMPERATURE (F)   50        43      2012


SUNRISE AND SUNSET
SEPTEMBER 10 2026.....SUNRISE   6:49 AM PDT   SUNSET   7:27 PM PDT
SEPTEMBER 11 2026.....SUNRISE   6:49 AM PDT   SUNSET   7:25 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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