Climatological Report (Daily)
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427
CDUS46 KMTR 120838
CLISTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT SAT SEP 12 2026

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 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         79   1:34 PM  99    2003  84     -5       81
  MINIMUM         55  11:59 PM  43    2005  50      5       57
  AVERAGE         67                        67      0       69

PRECIPITATION (IN)
  YESTERDAY        0.00          T    2017   0.00   0.00     0.00
  MONTH TO DATE    0.24                      0.02   0.22     0.12
  SINCE OCT 1     26.54                     33.67  -7.13    41.24
  SINCE JAN 1     13.65                     21.68  -8.03    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        2                                         4
  MONTH TO DATE   43                                        36
  SINCE SEP 1     43                                        36
  SINCE JAN 1    384                                       315
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   S (160)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     S (160)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     5.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           4:00 AM
 LOWEST     45           1:00 PM
 AVERAGE    71

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       102      2003
 MINIMUM TEMPERATURE (F)   50        45      2005


SUNRISE AND SUNSET
SEPTEMBER 12 2026.....SUNRISE   6:50 AM PDT   SUNSET   7:24 PM PDT
SEPTEMBER 13 2026.....SUNRISE   6:51 AM PDT   SUNSET   7:22 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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