Climatological Report (Daily)
Issued by NWS
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CDUS46 KMTR 310826
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
126 AM PDT THU JUL 31 2025
...................................
...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR JULY 30 2025...
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)
YESTERDAY
MAXIMUM 82 2:38 PM 95 2012 83 -1 86
MINIMUM 52 1:16 AM 46 1999 52 0 55
AVERAGE 67 68 -1 71
PRECIPITATION (IN)
YESTERDAY 0.00 T 2020 0.00 0.00 0.00
MONTH TO DATE 0.01 0.01 0.00 T
SINCE OCT 1 41.12 33.60 7.52 36.97
SINCE JAN 1 15.53 21.61 -6.08 25.41
DEGREE DAYS
HEATING
YESTERDAY 0 0
MONTH TO DATE 17 5
SINCE JUN 1 61 13
SINCE JUL 1 17 5
COOLING
YESTERDAY 2 6
MONTH TO DATE 39 214
SINCE JUN 1 79 325
SINCE JAN 1 116 354
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION S (170)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 23 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
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 1:00 AM
LOWEST 42 3:00 PM
AVERAGE 69
..........................................................
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 100 2000
MINIMUM TEMPERATURE (F) 52 48 1999
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 6:13 AM PDT SUNSET 8:22 PM PDT
AUGUST 1 2025........SUNRISE 6:14 AM PDT SUNSET 8:21 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$