Climatological Report (Daily)
Issued by NWS
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CDUS46 KMTR 200831
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
131 AM PDT THU AUG 20 2026
...................................
...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR AUGUST 19 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 86 2:37 PM 97 2020 84 2 88
MINIMUM 55 11:59 PM 46 2025 52 3 46
AVERAGE 71 68 3 67
PRECIPITATION (IN)
YESTERDAY 0.00 T 2012 0.00 0.00 0.00
2023
MONTH TO DATE T 0.01 -0.01 T
SINCE OCT 1 26.30 33.61 -7.31 41.12
SINCE JAN 1 13.41 21.62 -8.21 15.53
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 0 0
SINCE JUN 1 28 61
SINCE JUL 1 8 17
COOLING
YESTERDAY 6 2
MONTH TO DATE 78 93
SINCE JUN 1 261 176
SINCE JAN 1 300 213
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 6.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 40 3:00 PM
AVERAGE 69
..........................................................
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 97 2025
MINIMUM TEMPERATURE (F) 52 47 2000
SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE 6:30 AM PDT SUNSET 7:58 PM PDT
AUGUST 21 2026........SUNRISE 6:31 AM PDT SUNSET 7:57 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$