Horizon Colony weather by month
What a typical year looks like in Horizon Colony, Montana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Cut Bank Airport, 17 km from Horizon Colony; records cover 1903–2026.
The year at a glance
- Precipitation a year
- 10.8 in274 mm
- Snow a year
- Rare
- Last spring freeze
- May 23
- First fall freeze
- Sep 13
- Heating degree days
- 8,578
- Cooling degree days
- 163
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 93°34° (cooling, 1%).
Month by month
Horizon Colony in January
Highs average 32°0° and lows 11°−11°, with 0.22 in5.6 mm of precipitation in a typical January.
- Record high
- 67°19° (1962)
- Record low
- −46°−43° (1918)
- Heating degree days
- 1339
- Cooling degree days
- 0
Horizon Colony in February
Highs average 34°1° and lows 12°−11°, with 0.23 in5.8 mm of precipitation in a typical February.
- Record high
- 71°22° (1992)
- Record low
- −47°−44° (1936)
- Heating degree days
- 1173
- Cooling degree days
- 0
Horizon Colony in March
Highs average 43°6° and lows 20°−7°, with 0.36 in9.1 mm of precipitation in a typical March.
- Record high
- 77°25° (2004)
- Record low
- −34°−37° (2002)
- Heating degree days
- 1049
- Cooling degree days
- 0
Horizon Colony in April
Highs average 52°11° and lows 28°−2°, with 0.95 in24 mm of precipitation in a typical April.
- Record high
- 87°31° (1910)
- Record low
- −25°−32° (1935)
- Heating degree days
- 744
- Cooling degree days
- 0
Horizon Colony in May
Highs average 62°17° and lows 37°3°, with 1.7 in42 mm of precipitation in a typical May.
- Record high
- 92°33° (2025)
- Record low
- 9°−13° (1954)
- Heating degree days
- 477
- Cooling degree days
- 1
Horizon Colony in June
Highs average 70°21° and lows 45°7°, with 2.7 in69 mm of precipitation in a typical June.
- Record high
- 101°38° (1941)
- Record low
- 21°−6° (1910)
- Heating degree days
- 235
- Cooling degree days
- 11
Horizon Colony in July
Highs average 80°27° and lows 50°10°, with 1.3 in33 mm of precipitation in a typical July.
- Record high
- 106°41° (2007)
- Record low
- 32°0° (1999)
- Heating degree days
- 79
- Cooling degree days
- 76
Horizon Colony in August
Highs average 80°27° and lows 48°9°, with 0.96 in24 mm of precipitation in a typical August.
- Record high
- 107°42° (1961)
- Record low
- 25°−4° (1910)
- Heating degree days
- 102
- Cooling degree days
- 66
Horizon Colony in September
Highs average 69°20° and lows 40°5°, with 1.1 in27 mm of precipitation in a typical September.
- Record high
- 97°36° (1967)
- Record low
- −4°−20° (1934)
- Heating degree days
- 326
- Cooling degree days
- 8
Horizon Colony in OctoberThis month
Highs average 54°12° and lows 30°−1°, with 0.57 in14 mm of precipitation in a typical October.
- Record high
- 88°31° (1992)
- Record low
- −14°−26° (1919)
- Heating degree days
- 712
- Cooling degree days
- 1
Horizon Colony in November
Highs average 41°5° and lows 20°−7°, with 0.42 in11 mm of precipitation in a typical November.
- Record high
- 79°26° (1962)
- Record low
- −33°−36° (1921)
- Heating degree days
- 1032
- Cooling degree days
- 0
Horizon Colony in December
Highs average 33°0° and lows 13°−11°, with 0.31 in7.9 mm of precipitation in a typical December.
- Record high
- 67°19° (1939)
- Record low
- −46°−43° (1924)
- Heating degree days
- 1310
- Cooling degree days
- 0