Climatological Report (Daily)
Issued by NWS
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162
CDUS46 KMTR 170830
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
130 AM PDT THU SEP 17 2026
...................................
...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 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 75 2:19 PM 92 2025 84 -9 92
MINIMUM 52 11:45 PM 41 2006 50 2 52
AVERAGE 64 67 -3 72
PRECIPITATION (IN)
YESTERDAY 0.00 0.41 2015 0.00 0.00 0.00
MONTH TO DATE 0.24 0.03 0.21 0.12
SINCE OCT 1 26.54 33.68 -7.14 41.24
SINCE JAN 1 13.65 21.69 -8.04 15.65
DEGREE DAYS
HEATING
YESTERDAY 1 0
MONTH TO DATE 9 0
SINCE SEP 1 9 0
SINCE JUL 1 22 17
COOLING
YESTERDAY 0 7
MONTH TO DATE 49 57
SINCE SEP 1 49 57
SINCE JAN 1 390 336
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (180)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (150)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 5.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 11:00 PM
LOWEST 48 3:00 PM
AVERAGE 73
..........................................................
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 98 2000
MINIMUM TEMPERATURE (F) 50 44 2008
2018
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 6:55 AM PDT SUNSET 7:16 PM PDT
SEPTEMBER 18 2026.....SUNRISE 6:56 AM PDT SUNSET 7:14 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$