Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 210826
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT MON SEP 21 2026
...................................
...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 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 76 2:15 PM 100 2003 83 -7 83
MINIMUM 54 3:07 AM 40 2004 49 5 55
AVERAGE 65 66 -1 69
PRECIPITATION (IN)
YESTERDAY 0.00 0.16 2013 0.01 -0.01 0.00
MONTH TO DATE 0.24 0.05 0.19 0.14
SINCE OCT 1 26.54 33.70 -7.16 41.26
SINCE JAN 1 13.65 21.71 -8.06 15.67
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 11 0
SINCE SEP 1 11 0
SINCE JUL 1 24 17
COOLING
YESTERDAY 0 4
MONTH TO DATE 53 77
SINCE SEP 1 53 77
SINCE JAN 1 394 356
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 5.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 2:00 AM
LOWEST 51 2:00 PM
AVERAGE 74
..........................................................
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 103 2003
MINIMUM TEMPERATURE (F) 49 40 2012
SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE 6:58 AM PDT SUNSET 7:10 PM PDT
SEPTEMBER 22 2026.....SUNRISE 6:59 AM PDT SUNSET 7:08 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$