Climatological Report (Daily)
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842
CDUS46 KMTR 310036
CLISTS

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
536 PM PDT THU JUL 30 2026

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

...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR JULY 30 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         91   2:51 PM  95    2012  83      8       82
  MINIMUM         50   3:47 AM  46    1999  52     -2       52
  AVERAGE         71                        68      3       67

PRECIPITATION (IN)
  TODAY            0.00          T    2020   0.00   0.00     0.00
  MONTH TO DATE    T                         0.01  -0.01     0.01
  SINCE OCT 1     26.30                     33.60  -7.30    41.12
  SINCE JAN 1     13.41                     21.61  -8.20    15.53

DEGREE DAYS
 HEATING
  TODAY            0                                         0
  MONTH TO DATE    8                                        17
  SINCE JUN 1     28                                        61
  SINCE JUL 1      8                                        17

 COOLING
  TODAY            6                                         2
  MONTH TO DATE  112                                        39
  SINCE JUN 1    176                                        79
  SINCE JAN 1    215                                       116
...................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   S (160)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SE (140)
  AVERAGE WIND SPEED     3.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           3:00 AM
 LOWEST     26           3:00 PM
 AVERAGE    62

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


THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       100      2000
 MINIMUM TEMPERATURE (F)   52        48      1999


SUNRISE AND SUNSET
JULY 30 2026..........SUNRISE   6:12 AM PDT   SUNSET   8:23 PM PDT
JULY 31 2026..........SUNRISE   6:12 AM PDT   SUNSET   8:22 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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