What is the hottest month in Thompson?

July is the warmest month in Thompson, with an average high of 80.1°F.

What is the coldest month in Thompson?

January is the coldest month in Thompson, with an average low of -1.3°F.

What month does Thompson get the most rain?

June is typically the wettest month in Thompson, with about 4.13 inches of precipitation.

What plant hardiness zone is Thompson in?

Thompson is approximately in USDA plant hardiness Zone 5a, based on the average annual extreme minimum temperature.

Has the climate in Thompson changed recently?

8.7% of Thompson's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

Thompson, ND

Climate overview — based on NOAA 1991-2020 normals from GRAND FORKS UNIV (NWS), ND US.

Dfb Warm-summer humid continental climate 5a USDA hardiness Zone 5a

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Thompson has an annual average temperature of 40.5°F with about 22.8 inches of precipitation per year and 48.7 inches of snow. The warmest month is July (average high 80.1°F), and the coldest is January (average low -1.3°F). June is typically the wettest month (4.13 in) and January the driest (0.49 in). Snow typically falls from October through April.

Pleasant months

2 / 12

avg high 65–80°F, low ≥ 50°F

Annual swing

62.5°F

warmest to coldest month

Heating need

9,048

HDD/yr

Cooling need

231

CDD/yr

Best time to visit Thompson

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Climate change signal

All-time records →

32 of 366 (8.7%) of Thompson's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s		14
1900s		30
1910s		30
1920s		25
1930s		55
1940s		20
1950s		32
1960s		11
1970s		24
1980s		36
1990s		30
2000s		14
2010s		25
2020s		20

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	15.3°F	-1.3°F	7.0°F	0.49 in	9.5 in	7
February	20.4°F	2.5°F	11.4°F	0.56 in	8.2 in	7
March	34.0°F	16.7°F	25.4°F	0.91 in	7.8 in	7
April	52.0°F	31.0°F	41.5°F	1.19 in	3.0 in	7
May	66.5°F	43.5°F	55.0°F	2.99 in	0.1 in	11
June	75.9°F	54.8°F	65.4°F	4.13 in	—	12
July	80.1°F	58.8°F	69.5°F	3.55 in	—	10
August	79.2°F	56.5°F	67.8°F	3.03 in	—	9
September	69.7°F	47.4°F	58.5°F	2.42 in	—	9
October	53.3°F	34.5°F	43.9°F	2.00 in	1.5 in	8
November	35.0°F	19.6°F	27.3°F	0.83 in	5.1 in	6
December	21.0°F	5.8°F	13.4°F	0.73 in	13.5 in	8