Weather & Climate in Glen Ullin, ND

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Glen Ullin has a cool climate with an average annual temperature of 43°F (6°C). Winters average 14°F in January while summers reach 70°F in July. The area gets 273 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 16.8 inches (drier than the 38-inch national average). The area receives 37.7 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 38. The city sits at an elevation of 2,100 feet.

Temperature

14°F Jan (-10°C) 70°F Jul (21°C)

Annual Average	42.6°F
	21% below US avg
January Average	14°F (-10°C)
July Average	70°F (21°C)
Sunny Days	273 days/yr

Geography

Elevation	2,100 ft (640 m)
Area	1.0 sq mi (2.6 km²)
Population Density	649/sq mi
Coordinates	46.8117°N, 101.8335°W
Timezone	America/Chicago
County	Morton County County
Nearest Airport	Dickinson/Theodore Roosevelt Regional (DIK) 46 miles away

Precipitation & Snow

Annual Rainfall 16.8"

56% below US avg

Snowfall 37.7"

Wettest Month (Jun) 3.35"

Driest Month (Jan) 0.39"

Air Quality

AQI Median	38.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	49.6 / 100
Social Vulnerability	10.6 / 100
Community Resilience	87.2 / 100

Hazard Breakdown

Tornado	Relatively Low
Earthquake	Very Low
Wildfire	Relatively Low
Flood	Relatively Low
Hail	Relatively High
Strong Wind	Relatively Low
Heat Wave	Very Low
Winter Weather	Relatively High
Lightning	Very Low
Ice Storm	Relatively High
Drought	Very Low
Cold Wave	Relatively Moderate
Landslide	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Tornado History

214 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 8 fatalities, 77 injuries.

Date	Rating	Distance	Path	Fatalities
May 29, 1953	EF5	98 km	14.8 mi	2
Jul 4, 1978	EF4	46 km	26.0 mi	5
Jun 29, 1975	EF4	92 km	68.0 mi	1
Jul 8, 2009	EF3	75 km	2.3 mi	0
Jul 30, 1981	EF3	54 km	23.9 mi	0
May 25, 1978	EF3	71 km	2.5 mi	0
Jun 18, 1956	EF3	54 km	10.6 mi	0
Jun 5, 1956	EF3	98 km	0.1 mi	0
Jun 12, 2011	EF2	59 km	6.0 mi	0
Aug 24, 2006	EF2	72 km	2.0 mi	0
Jun 18, 1990	EF2	39 km	6.0 mi	0
May 26, 1978	EF2	70 km	0.3 mi	0
May 24, 1975	EF2	51 km	33.7 mi	0
Jun 4, 1971	EF2	5 km	0.5 mi	0
Aug 29, 1964	EF2	54 km	0.1 mi	0
Jun 17, 1956	EF2	85 km	37.1 mi	0
Aug 3, 1955	EF2	86 km	0.1 mi	0
Jun 10, 1952	EF2	90 km	10.1 mi	0
Jul 7, 2020	EF1	78 km	0.2 mi	0
Jul 12, 2019	EF1	60 km	2.9 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

14 wildfires (100+ acres) recorded within 100 km. Largest: TENBROOK (30,588 acres, 2002).

Year	Name	Acres Burned	Distance
2002	TENBROOK	30,588	92 km
1988	UNNAMED	7,593	98 km
2003	MCCLEAN BOTTOMS	6,421	96 km
2022	HWY31 AND 101ST WEST	4,879	98 km
2006	RIVERDALE WOODS/DOWNSTREAM	1,705	79 km
1988	UNNAMED	1,678	94 km
2002	BISRURAL2	1,649	95 km
1993	UNNAMED	1,492	95 km
2024	CEDAR CREEK	1,388	92 km
1999	SOLEN	1,155	94 km
2007	ROBINSON SUNFLOWER	1,115	84 km
1999	UNNAMED	1,062	45 km
2002	UNNAMED	1,049	91 km
2005	KIMBALL BOTTOMS FIRE	1,028	89 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	14°F (-10°C)	0.4 in	Coldest, Driest
February	19°F (-7°C)	0.4 in
March	29°F (-2°C)	0.8 in
April	42°F (6°C)	1.9 in
May	55°F (13°C)	2.6 in
June	64°F (18°C)	3.4 in	Wettest
July	70°F (21°C)	2.3 in	Warmest
August	69°F (21°C)	1.9 in
September	58°F (14°C)	1.5 in
October	45°F (7°C)	1.1 in
November	28°F (-2°C)	0.6 in
December	16°F (-9°C)	0.4 in

Glen Ullin has a seasonal temperature swing of 57°F / from 14°F in January to 70°F in July. Total annual precipitation is 17.2 inches, with June being the wettest month (3.4") and January the driest (0.4").

View full profile of Glen Ullin, ND →