Thompson weather by month
What a typical year looks like in Thompson, North Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at GRAND FORKS UNIV (NWS), 16 km from Thompson; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 22.8 in580 mm
- Snow a year
- 49 in124 cm
- Last spring freeze
- May 12
- First fall freeze
- Oct 1
- Heating degree days
- 9,315
- Cooling degree days
- 431
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −21°−29° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Thompson in January
Highs average 15°−9° and lows −1°−18°, with 0.49 in12 mm of precipitation and 10 in24 cm of snow in a typical January.
- Record high
- 54°12° (1990)
- Record low
- −43°−42° (1912)
- Heating degree days
- 1798
- Cooling degree days
- 0
Thompson in February
Highs average 20°−6° and lows 3°−16°, with 0.56 in14 mm of precipitation and 8 in21 cm of snow in a typical February.
- Record high
- 67°19° (2000)
- Record low
- −42°−41° (1936)
- Heating degree days
- 1499
- Cooling degree days
- 0
Thompson in March
Highs average 34°1° and lows 17°−8°, with 0.91 in23 mm of precipitation and 8 in20 cm of snow in a typical March.
- Record high
- 83°28° (1910)
- Record low
- −36°−38° (1948)
- Heating degree days
- 1229
- Cooling degree days
- 0
Thompson in April
Highs average 52°11° and lows 31°−1°, with 1.2 in30 mm of precipitation and 3 in8 cm of snow in a typical April.
- Record high
- 98°37° (1980)
- Record low
- −9°−23° (1920)
- Heating degree days
- 706
- Cooling degree days
- 1
Thompson in May
Highs average 67°19° and lows 44°6°, with 3 in76 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 105°41° (1934)
- Record low
- 5°−15° (1967)
- Heating degree days
- 330
- Cooling degree days
- 20
Thompson in June
Highs average 76°24° and lows 55°13°, with 4.1 in105 mm of precipitation in a typical June.
- Record high
- 105°41° (1933)
- Record low
- 28°−2° (1910)
- Heating degree days
- 78
- Cooling degree days
- 88
Thompson in July
Highs average 80°27° and lows 59°15°, with 3.6 in90 mm of precipitation in a typical July.
- Record high
- 109°43° (1936)
- Record low
- 36°2° (1908)
- Heating degree days
- 24
- Cooling degree days
- 161
Thompson in August
Highs average 79°26° and lows 57°14°, with 3 in77 mm of precipitation in a typical August.
- Record high
- 104°40° (1983)
- Record low
- 30°−1° (1931)
- Heating degree days
- 39
- Cooling degree days
- 127
Thompson in September
Highs average 70°21° and lows 47°9°, with 2.4 in61 mm of precipitation in a typical September.
- Record high
- 102°39° (1978)
- Record low
- 11°−12° (1893)
- Heating degree days
- 225
- Cooling degree days
- 32
Thompson in OctoberThis month
Highs average 53°12° and lows 35°1°, with 2 in51 mm of precipitation and 1.5 in3.8 cm of snow in a typical October.
- Record high
- 95°35° (1922)
- Record low
- −9°−23° (1919)
- Heating degree days
- 656
- Cooling degree days
- 2
Thompson in November
Highs average 35°2° and lows 20°−7°, with 0.83 in21 mm of precipitation and 5 in13 cm of snow in a typical November.
- Record high
- 73°23° (1975)
- Record low
- −35°−37° (1905)
- Heating degree days
- 1131
- Cooling degree days
- 0
Thompson in December
Highs average 21°−6° and lows 6°−15°, with 0.73 in19 mm of precipitation and 14 in34 cm of snow in a typical December.
- Record high
- 58°14° (1900)
- Record low
- −37°−38° (1933)
- Heating degree days
- 1600
- Cooling degree days
- 0