Climatological Report (Daily)
Issued by NWS
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CDUS46 KMTR 120838
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
138 AM PDT SAT SEP 12 2026
...................................
...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 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 79 1:34 PM 99 2003 84 -5 81
MINIMUM 55 11:59 PM 43 2005 50 5 57
AVERAGE 67 67 0 69
PRECIPITATION (IN)
YESTERDAY 0.00 T 2017 0.00 0.00 0.00
MONTH TO DATE 0.24 0.02 0.22 0.12
SINCE OCT 1 26.54 33.67 -7.13 41.24
SINCE JAN 1 13.65 21.68 -8.03 15.65
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 8 0
SINCE SEP 1 8 0
SINCE JUL 1 21 17
COOLING
YESTERDAY 2 4
MONTH TO DATE 43 36
SINCE SEP 1 43 36
SINCE JAN 1 384 315
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 5.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 45 1:00 PM
AVERAGE 71
..........................................................
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 102 2003
MINIMUM TEMPERATURE (F) 50 45 2005
SUNRISE AND SUNSET
SEPTEMBER 12 2026.....SUNRISE 6:50 AM PDT SUNSET 7:24 PM PDT
SEPTEMBER 13 2026.....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.
$$