Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS46 KMTR 220030
CLISTS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
530 PM PDT MON JUL 21 2025
...................................
...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR JULY 21 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 79 2:12 PM 99 2006 83 -4 90
MINIMUM 53 12:38 AM 47 2001 52 1 53
2021
AVERAGE 66 68 -2 72
PRECIPITATION (IN)
TODAY 0.00 T 2014 0.00 0.00 0.00
2020
MONTH TO DATE 0.01 0.01 0.00 0.00
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
TODAY 0 0
MONTH TO DATE 11 3
SINCE JUN 1 55 11
SINCE JUL 1 11 3
COOLING
TODAY 1 7
MONTH TO DATE 29 166
SINCE JUN 1 69 277
SINCE JAN 1 106 306
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 5.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 12:00 AM
LOWEST 47 2:00 PM
AVERAGE 70
..........................................................
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 108 2006
MINIMUM TEMPERATURE (F) 52 44 2022
SUNRISE AND SUNSET
JULY 21 2025..........SUNRISE 6:04 AM PDT SUNSET 8:31 PM PDT
JULY 22 2025..........SUNRISE 6:05 AM PDT SUNSET 8:30 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$