


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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630 CDUS46 KMTR 170832 CLISTS CLIMATE REPORT NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 132 AM PDT THU JUL 17 2025 ................................... ...THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR JULY 16 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 70 3:19 PM 108 2017 84 -14 76 MINIMUM 55 11:59 PM 47 2009 52 3 47 2022 2024 AVERAGE 63 68 -5 62 PRECIPITATION (IN) YESTERDAY T R T 2012 0.00 0.00 0.00 2015 2023 MONTH TO DATE T 0.01 -0.01 0.00 SINCE OCT 1 41.11 33.60 7.51 36.97 SINCE JAN 1 15.52 21.61 -6.09 25.41 DEGREE DAYS HEATING YESTERDAY 2 3 MONTH TO DATE 10 3 SINCE JUN 1 54 11 SINCE JUL 1 10 3 COOLING YESTERDAY 0 0 MONTH TO DATE 26 126 SINCE JUN 1 66 237 SINCE JAN 1 103 266 ................................................................... WIND (MPH) RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (190) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (180) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (180) AVERAGE WIND SPEED 6.6 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 93 6:00 AM LOWEST 59 3:00 PM AVERAGE 76 .......................................................... THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 83 101 2006 MINIMUM TEMPERATURE (F) 52 47 2009 SUNRISE AND SUNSET JULY 17 2025..........SUNRISE 6:01 AM PDT SUNSET 8:33 PM PDT JULY 18 2025..........SUNRISE 6:02 AM PDT SUNSET 8:33 PM PDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$