Climatological Report (Daily)
Issued by NWS
Issued by NWS
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875
CDUS46 KMTR 010838
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT WED OCT 01 2025
...................................
...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 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 69 12:03 PM 99 2001 81 -12 96
MINIMUM 59 6:24 AM 37 2019 48 11 46
AVERAGE 64 65 -1 71
PRECIPITATION (IN)
YESTERDAY 0.04R T 2011 0.01 0.03 0.00
2020
MONTH TO DATE 0.37 0.13 0.24 0.00
SINCE OCT 1 41.49 33.78 7.71 37.05
SINCE JAN 1 15.90 21.79 -5.89 25.49
DEGREE DAYS
HEATING
YESTERDAY 1 0
MONTH TO DATE 3 11
SINCE SEP 1 3 11
SINCE JUL 1 20 20
COOLING
YESTERDAY 0 6
MONTH TO DATE 113 94
SINCE SEP 1 113 94
SINCE JAN 1 392 598
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (200)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 12:00 AM
LOWEST 73 1:00 PM
AVERAGE 87
..........................................................
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 106 2024
MINIMUM TEMPERATURE (F) 48 37 2019
SUNRISE AND SUNSET
OCTOBER 1 2025.......SUNRISE 7:07 AM PDT SUNSET 6:53 PM PDT
OCTOBER 2 2025.......SUNRISE 7:08 AM PDT SUNSET 6:52 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$