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Weather in Fontenelle, WY · National Weather Service + NOAA

It hardly ever freezes in Fontenelle

Fontenelle has cold winters and warm summers, with very little rain. A typical July afternoon reaches 84°, a January night drops to 2°, and about 27 inches of snow falls in a normal winter. Normal November highs come to 42°, and lows to 14°.

Winter 30°/4°Spring 54°/25°Summer 81°/43°Fall 57°/25°
Right now
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Sunrise 9:00 am · sunset 7:07 pm

Getting the latest forecast from the National Weather Service…

What stands out about Fontenelle’s weather

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

Climate →
It hardly ever freezesOnly 100% of years see a night at 32° or below.Real wintersJanuary nights average 2°, colder than 93% of U.S. towns.A dry climateJust 7 inches of rain and melted snow a year, less than 99% of U.S. towns.Less snow than most of WyomingAbout 27 inches a winter, less than 169 of 184 Wyoming towns.
A normal year

Where today sits in Fontenelle’s year

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

Full climate →
Winter
30° / 4°
12 days with an inch or more of snow
Spring
54° / 25°
Frost is rare by spring
Summer
81° / 43°
4 days reach 90° in a normal year
Fall now
57° / 25°
Mild well into the fall
Best months to be outside
JunAug
Highs of 62–84° and lows of 40° or more
How much snow does Fontenelle get?About 27 inches a winter.When is it wettest?May, with 1.3 inches.Is it warmer than it used to be?+1.6° vs. the 20th century.

Weather talk

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

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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 Fontenelle itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Fontenelle Dam, WY (1 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.