Twin Hills Colony weather by month
What a typical year looks like in Twin Hills Colony, Montana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Brady 27 Ene (the Knees), 16 km from Twin Hills Colony; records cover 2013–2026.
The year at a glance
- Precipitation a year
- 12.5 in317 mm
- Snow a year
- 43 in108 cm
- Last spring freeze
- May 9
- First fall freeze
- Sep 30
- Heating degree days
- 7,595
- Cooling degree days
- 374
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −18°−28° (heating, 99%) and 96°36° (cooling, 1%).
Month by month
Twin Hills Colony in January
Highs average 32°0° and lows 15°−10°, with 0.41 in10 mm of precipitation and 8 in19 cm of snow in a typical January.
- Record high
- 65°18° (2015)
- Record low
- −49°−45° (2024)
- Heating degree days
- 1283
- Cooling degree days
- 0
Twin Hills Colony in February
Highs average 37°3° and lows 16°−9°, with 0.37 in9.4 mm of precipitation and 6 in15 cm of snow in a typical February.
- Record high
- 71°22° (2026)
- Record low
- −33°−36° (2019)
- Heating degree days
- 1086
- Cooling degree days
- 0
Twin Hills Colony in March
Highs average 44°6° and lows 23°−5°, with 0.48 in12 mm of precipitation and 7 in19 cm of snow in a typical March.
- Record high
- 74°23° (2015)
- Record low
- −27°−33° (2019)
- Heating degree days
- 986
- Cooling degree days
- 0
Twin Hills Colony in April
Highs average 55°13° and lows 32°0°, with 1.2 in31 mm of precipitation and 6 in14 cm of snow in a typical April.
- Record high
- 81°27° (2018)
- Record low
- −2°−19° (2018)
- Heating degree days
- 645
- Cooling degree days
- 0
Twin Hills Colony in May
Highs average 64°18° and lows 41°5°, with 2 in51 mm of precipitation and 1.5 in3.8 cm of snow in a typical May.
- Record high
- 92°33° (2026)
- Record low
- 19°−7° (2019)
- Heating degree days
- 397
- Cooling degree days
- 5
Twin Hills Colony in June
Highs average 72°22° and lows 48°9°, with 2.7 in68 mm of precipitation in a typical June.
- Record high
- 98°37° (2015)
- Record low
- 34°1° (2022)
- Heating degree days
- 172
- Cooling degree days
- 26
Twin Hills Colony in July
Highs average 83°28° and lows 54°12°, with 1.2 in31 mm of precipitation in a typical July.
- Record high
- 106°41° (2026)
- Record low
- 39°4° (2018)
- Heating degree days
- 50
- Cooling degree days
- 155
Twin Hills Colony in August
Highs average 83°29° and lows 53°12°, with 1.1 in29 mm of precipitation in a typical August.
- Record high
- 107°42° (2018)
- Record low
- 37°3° (2015)
- Heating degree days
- 54
- Cooling degree days
- 148
Twin Hills Colony in September
Highs average 72°22° and lows 45°7°, with 1.1 in29 mm of precipitation and 0.1 in0.3 cm of snow in a typical September.
- Record high
- 102°39° (2022)
- Record low
- 27°−3° (2019)
- Heating degree days
- 230
- Cooling degree days
- 35
Twin Hills Colony in OctoberThis month
Highs average 58°14° and lows 35°1°, with 0.87 in22 mm of precipitation and 2 in5.1 cm of snow in a typical October.
- Record high
- 86°30° (2015)
- Record low
- 0°−18° (2020)
- Heating degree days
- 594
- Cooling degree days
- 5
Twin Hills Colony in November
Highs average 45°7° and lows 26°−3°, with 0.48 in12 mm of precipitation and 6 in15 cm of snow in a typical November.
- Record high
- 72°22° (2016)
- Record low
- −13°−25° (2014)
- Heating degree days
- 885
- Cooling degree days
- 0
Twin Hills Colony in December
Highs average 34°1° and lows 18°−8°, with 0.49 in12 mm of precipitation and 6 in16 cm of snow in a typical December.
- Record high
- 68°20° (2021)
- Record low
- −28°−33° (2013)
- Heating degree days
- 1213
- Cooling degree days
- 0