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Weather in Glen Ullin, ND · National Weather Service + NOAA

Glen Ullin has milder winters than most of North Dakota

Glen Ullin has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 83°, a January night drops to 3°, and about 41 inches of snow falls in a normal winter. A typical November afternoon reaches 40°, and nights fall to 18°.

Winter 27°/6°Spring 54°/29°Summer 81°/53°Fall 56°/31°
Right now
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Sunrise 8:31 am · sunset 6:30 pm

Getting the latest forecast from the National Weather Service…

What stands out about Glen Ullin’s weather

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

Climate →
Milder winters than most of North DakotaJanuary nights average 3°, milder than 1,536 of 1,711 North Dakota towns.A dry climateJust 17 inches of rain and melted snow a year, less than 92% of U.S. towns.A short growing season123 frost-free days, from May 19 to Sep 21.Warmer summers than most of North DakotaJuly afternoons average 83°, warmer than 1,553 of 1,711 North Dakota towns.
A normal year

Where today sits in Glen Ullin’s year

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

Full climate →
Winter
27° / 6°
18 days with an inch or more of snow
Spring
54° / 29°
Last frost around May 19
Summer
81° / 53°
15 days reach 90° in a normal year
Fall now
56° / 31°
First frost around Sep 21
Pastthe usual first frost (Sep 21). Last frost next spring: May 19
Best months to be outside
MayJunJulAugSep
Highs of 62–84° and lows of 40° or more
How much snow does Glen Ullin get?About 41 inches a winter.When is it wettest?June, with 3.3 inches.Is it warmer than it used to be?+1.2° vs. the 20th century.

Weather talk

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

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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 Glen Ullin itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Hebron, ND (12 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.