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Weather in Dayton, WY · National Weather Service + NOAA

Dayton has a dry climate

Dayton has cold, snowy winters and warm summers, with very little rain. A typical July afternoon reaches 87°, a January night drops to 11°, and about 68 inches of snow falls in a normal winter. A typical November afternoon reaches 46°, and nights fall to 20°.

Winter 37°/12°Spring 57°/31°Summer 83°/51°Fall 60°/31°
Right now
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Sunrise 8:50 am · sunset 6:54 pm

Getting the latest forecast from the National Weather Service…

What stands out about Dayton’s weather

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

Climate →
A dry climateJust 19 inches of rain and melted snow a year, less than 90% of U.S. towns.Snow countryAbout 68 inches a winter, more than 92% of U.S. towns.
A normal year

Where today sits in Dayton’s year

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

Full climate →
Winter
37° / 12°
25 days with an inch or more of snow
Spring
57° / 31°
Last frost around May 24
Summer
83° / 51°
24 days reach 90° in a normal year
Fall now
60° / 31°
First frost around Sep 18
Pastthe usual first frost (Sep 18). Last frost next spring: May 24
Best months to be outside
JunSep
Highs of 62–84° and lows of 40° or more
How much snow does Dayton get?About 68 inches a winter.When is it wettest?May, with 3.5 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 Dayton.

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