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Weather in Monte Rio, CA · National Weather Service + NOAA

It hardly ever freezes in Monte Rio

Monte Rio has warm winters and cool summers, with plenty of rain. A typical July afternoon reaches 76°, a January night drops to 41°, and snow is almost unheard of. A typical November afternoon reaches 64°, and nights fall to 43°.

Winter 58°/41°Spring 65°/44°Summer 75°/51°Fall 71°/47°
Right now
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Sunrise 9:40 am · sunset 8:11 pm

Getting the latest forecast from the National Weather Service…

What stands out about Monte Rio’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
It hardly ever freezesOnly 67% of years see a night at 32° or below.Cool summersJuly afternoons average 76°, cooler than 98% of U.S. towns.Snow is rareNo measurable snow in a normal year.Wetter than most of California50 inches of rain and melted snow a year, more than 1,527 of 1,618 California towns.
A normal year

Where today sits in Monte Rio’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
58° / 41°
Snow is rare
Spring
65° / 44°
Frost is rare by spring
Summer
75° / 51°
15 days reach 90° in a normal year
Fall now
71° / 47°
Mild well into the fall
Best months to be outside
AprMayJunJulAugSepOctNov
Highs of 62–84° and lows of 40° or more
How much snow does Monte Rio get?Almost none.When is it wettest?December, with 10.4 inches.Is it warmer than it used to be?+1.3° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Monte Rio.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Monte Rio itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Santa Rosa, CA (17 mi, snow) and Occidental, CA (7 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.