425
CDUS46 KMTR 130030
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
530 PM PDT FRI SEP 12 2025
...............................
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 12 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 82 2:55 PM 102 2003 84 -2 85
MINIMUM 53 4:25 AM 45 2005 50 3 49
AVERAGE 68 67 1 67
PRECIPITATION (IN)
TODAY 0.00 0.06 2009 0.00 0.00 0.00
MONTH TO DATE 0.12 0.02 0.10 0.00
SINCE OCT 1 41.24 33.67 7.57 37.05
SINCE JAN 1 15.65 21.68 -6.03 25.49
DEGREE DAYS
HEATING
TODAY 0 0
MONTH TO DATE 0 1
SINCE SEP 1 0 1
SINCE JUL 1 17 10
COOLING
TODAY 3 2
MONTH TO DATE 39 47
SINCE SEP 1 39 47
SINCE JAN 1 318 551
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 4.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 8:00 AM
LOWEST 44 4:00 PM
AVERAGE 71
......................................................
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 100 2003
MINIMUM TEMPERATURE (F) 50 45 2021
SUNRISE AND SUNSET
SEPTEMBER 12 2025.....SUNRISE 6:51 AM PDT SUNSET 7:23 PM PDT
SEPTEMBER 13 2025.....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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page