Climatological Report (Daily)
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364
CDUS46 KMTR 020828
CLISTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
128 AM PDT TUE SEP 02 2025

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 1 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM        100   3:18 PM 110    2017  85     15       84
  MINIMUM         49   5:09 AM  46    1999  51     -2       49
                                      2022
  AVERAGE         75                        68      7       67

PRECIPITATION (IN)
  YESTERDAY        0.00          0.02 2000   0.00   0.00     0.00
  MONTH TO DATE    0.00                      0.00   0.00     0.00
  SINCE OCT 1     41.12                     33.65   7.47    37.05
  SINCE JAN 1     15.53                     21.66  -6.13    25.49

DEGREE DAYS
 HEATING
  YESTERDAY        0                                         0
  MONTH TO DATE    0                                         0
  SINCE SEP 1      0                                         0
  SINCE JUL 1     17                                         9

 COOLING
  YESTERDAY       10                                         2
  MONTH TO DATE   10                                         2
  SINCE SEP 1     10                                         2
  SINCE JAN 1    289                                       506
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   S (170)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     2.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           6:00 AM
 LOWEST     11           4:00 PM
 AVERAGE    54

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   85       110      2017
 MINIMUM TEMPERATURE (F)   51        43      2012


SUNRISE AND SUNSET
SEPTEMBER  2 2025.....SUNRISE   6:42 AM PDT   SUNSET   7:39 PM PDT
SEPTEMBER  3 2025.....SUNRISE   6:43 AM PDT   SUNSET   7:37 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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