Climatological Report (Daily)
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194
CDUS46 KMTR 210826
CLISTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT MON SEP 21 2026

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 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         76   2:15 PM 100    2003  83     -7       83
  MINIMUM         54   3:07 AM  40    2004  49      5       55
  AVERAGE         65                        66     -1       69

PRECIPITATION (IN)
  YESTERDAY        0.00          0.16 2013   0.01  -0.01     0.00
  MONTH TO DATE    0.24                      0.05   0.19     0.14
  SINCE OCT 1     26.54                     33.70  -7.16    41.26
  SINCE JAN 1     13.65                     21.71  -8.06    15.67

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE   11                                         0
  SINCE SEP 1     11                                         0
  SINCE JUL 1     24                                        17

 COOLING
  YESTERDAY        0                                         4
  MONTH TO DATE   53                                        77
  SINCE SEP 1     53                                        77
  SINCE JAN 1    394                                       356
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   4   RESULTANT WIND DIRECTION   S (180)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     S (160)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     5.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           2:00 AM
 LOWEST     51           2:00 PM
 AVERAGE    74

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       103      2003
 MINIMUM TEMPERATURE (F)   49        40      2012


SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE   6:58 AM PDT   SUNSET   7:10 PM PDT
SEPTEMBER 22 2026.....SUNRISE   6:59 AM PDT   SUNSET   7:08 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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