Fairmount weather by month
What a typical year looks like in Fairmount, North Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at White Rock Dam, 22 km from Fairmount; records cover 1939–2026.
The year at a glance
- Precipitation a year
- 24.5 in622 mm
- Snow a year
- 36 in91 cm
- Last spring freeze
- May 3
- First fall freeze
- Oct 2
- Heating degree days
- 8,592
- Cooling degree days
- 547
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −20°−29° (heating, 99%) and 93°34° (cooling, 1%).
Month by month
Fairmount in January
Highs average 20°−7° and lows 1°−17°, with 0.59 in15 mm of precipitation and 5 in12 cm of snow in a typical January.
- Record high
- 58°14° (2012)
- Record low
- −33°−36° (2010)
- Heating degree days
- 1696
- Cooling degree days
- 0
Fairmount in February
Highs average 24°−4° and lows 5°−15°, with 0.64 in16 mm of precipitation and 9 in23 cm of snow in a typical February.
- Record high
- 63°17° (2016)
- Record low
- −28°−33° (2008)
- Heating degree days
- 1415
- Cooling degree days
- 0
Fairmount in March
Highs average 37°3° and lows 19°−7°, with 1.1 in28 mm of precipitation and 5 in14 cm of snow in a typical March.
- Record high
- 79°26° (2012)
- Record low
- −18°−28° (2008)
- Heating degree days
- 1156
- Cooling degree days
- 0
Fairmount in April
Highs average 54°12° and lows 33°0°, with 2.3 in58 mm of precipitation and 4 in11 cm of snow in a typical April.
- Record high
- 92°33° (2026)
- Record low
- 6°−14° (2018)
- Heating degree days
- 659
- Cooling degree days
- 1
Fairmount in May
Highs average 69°20° and lows 46°8°, with 2.9 in74 mm of precipitation in a typical May.
- Record high
- 96°36° (2001)
- Record low
- 22°−6° (2005)
- Heating degree days
- 268
- Cooling degree days
- 28
Fairmount in June
Highs average 77°25° and lows 57°14°, with 4.1 in105 mm of precipitation in a typical June.
- Record high
- 100°38° (2021)
- Record low
- 38°3° (2009)
- Heating degree days
- 57
- Cooling degree days
- 114
Fairmount in July
Highs average 82°28° and lows 61°16°, with 3.7 in94 mm of precipitation in a typical July.
- Record high
- 103°39° (1940)
- Record low
- 43°6° (1940)
- Heating degree days
- 13
- Cooling degree days
- 210
Fairmount in August
Highs average 80°27° and lows 58°14°, with 2.4 in61 mm of precipitation in a typical August.
- Record high
- 100°38° (2006)
- Record low
- 37°3° (2004)
- Heating degree days
- 30
- Cooling degree days
- 145
Fairmount in September
Highs average 72°22° and lows 49°9°, with 2.6 in65 mm of precipitation in a typical September.
- Record high
- 98°37° (1939)
- Record low
- 23°−5° (1939)
- Heating degree days
- 184
- Cooling degree days
- 46
Fairmount in OctoberThis month
Highs average 57°14° and lows 36°2°, with 2.4 in62 mm of precipitation and 0.6 in1.5 cm of snow in a typical October.
- Record high
- 95°35° (2015)
- Record low
- 9°−13° (2020)
- Heating degree days
- 581
- Cooling degree days
- 3
Fairmount in November
Highs average 39°4° and lows 22°−6°, with 0.97 in25 mm of precipitation and 1.7 in4.3 cm of snow in a typical November.
- Record high
- 80°27° (2020)
- Record low
- −12°−24° (2014)
- Heating degree days
- 1034
- Cooling degree days
- 0
Fairmount in December
Highs average 25°−4° and lows 8°−13°, with 0.74 in19 mm of precipitation and 10 in25 cm of snow in a typical December.
- Record high
- 70°21° (1939)
- Record low
- −26°−32° (2008)
- Heating degree days
- 1499
- Cooling degree days
- 0