Niagara weather by month
What a typical year looks like in Niagara, North Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Petersburg 2 N, 11 km from Niagara; records cover 1944–2026.
The year at a glance
- Precipitation a year
- 20.2 in514 mm
- Snow a year
- 43 in108 cm
- Last spring freeze
- May 14
- First fall freeze
- Sep 23
- Heating degree days
- 9,920
- Cooling degree days
- 343
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −25°−32° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Niagara in January
Highs average 14°−10° and lows −4°−20°, with 0.44 in11 mm of precipitation and 6 in16 cm of snow in a typical January.
- Record high
- 50°10° (1990)
- Record low
- −42°−41° (1982)
- Heating degree days
- 1868
- Cooling degree days
- 0
Niagara in February
Highs average 19°−7° and lows −1°−18°, with 0.45 in11 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 62°17° (2000)
- Record low
- −44°−42° (1996)
- Heating degree days
- 1569
- Cooling degree days
- 0
Niagara in March
Highs average 31°0° and lows 13°−10°, with 0.5 in13 mm of precipitation and 8 in20 cm of snow in a typical March.
- Record high
- 79°26° (1946)
- Record low
- −34°−37° (1948)
- Heating degree days
- 1325
- Cooling degree days
- 0
Niagara in April
Highs average 50°10° and lows 28°−2°, with 0.94 in24 mm of precipitation and 2.2 in5.6 cm of snow in a typical April.
- Record high
- 98°37° (1980)
- Record low
- −12°−24° (1979)
- Heating degree days
- 779
- Cooling degree days
- 0
Niagara in May
Highs average 65°18° and lows 42°5°, with 2.8 in71 mm of precipitation and 0.6 in1.5 cm of snow in a typical May.
- Record high
- 96°36° (1964)
- Record low
- 5°−15° (1967)
- Heating degree days
- 372
- Cooling degree days
- 13
Niagara in June
Highs average 74°24° and lows 53°12°, with 3.8 in98 mm of precipitation in a typical June.
- Record high
- 103°39° (2021)
- Record low
- 28°−2° (1969)
- Heating degree days
- 106
- Cooling degree days
- 67
Niagara in July
Highs average 79°26° and lows 58°14°, with 3.6 in92 mm of precipitation in a typical July.
- Record high
- 100°38° (1988)
- Record low
- 30°−1° (1983)
- Heating degree days
- 35
- Cooling degree days
- 134
Niagara in August
Highs average 78°26° and lows 55°13°, with 2.5 in64 mm of precipitation in a typical August.
- Record high
- 102°39° (1947)
- Record low
- 25°−4° (1982)
- Heating degree days
- 54
- Cooling degree days
- 104
Niagara in September
Highs average 69°21° and lows 45°7°, with 2.1 in54 mm of precipitation in a typical September.
- Record high
- 102°39° (1978)
- Record low
- 15°−9° (1965)
- Heating degree days
- 263
- Cooling degree days
- 24
Niagara in OctoberThis month
Highs average 52°11° and lows 32°0°, with 1.7 in42 mm of precipitation and 2.2 in5.6 cm of snow in a typical October.
- Record high
- 92°33° (1963)
- Record low
- −1°−18° (1991)
- Heating degree days
- 714
- Cooling degree days
- 1
Niagara in November
Highs average 34°1° and lows 17°−8°, with 0.73 in19 mm of precipitation and 5 in12 cm of snow in a typical November.
- Record high
- 75°24° (1999)
- Record low
- −25°−32° (1958)
- Heating degree days
- 1184
- Cooling degree days
- 0
Niagara in December
Highs average 20°−7° and lows 4°−16°, with 0.64 in16 mm of precipitation and 11 in28 cm of snow in a typical December.
- Record high
- 57°14° (1969)
- Record low
- −39° (1983)
- Heating degree days
- 1651
- Cooling degree days
- 0