Eagle Creek Colony weather by month
What a typical year looks like in Eagle Creek Colony, Montana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Dunkirk 19nne, 20 km from Eagle Creek Colony; records cover 1922–2026.
The year at a glance
- Precipitation a year
- 10.6 in270 mm
- Snow a year
- Rare
- Last spring freeze
- May 24
- First fall freeze
- Sep 10
- Heating degree days
- 8,943
- Cooling degree days
- 220
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −24°−31° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Eagle Creek Colony in January
Highs average 29°−1° and lows 5°−15°, with 0.33 in8.4 mm of precipitation in a typical January.
- Record high
- 63°17° (1962)
- Record low
- −48°−44° (2024)
- Heating degree days
- 1490
- Cooling degree days
- 0
Eagle Creek Colony in February
Highs average 34°1° and lows 7°−14°, with 0.28 in7.1 mm of precipitation in a typical February.
- Record high
- 69°21° (2016)
- Record low
- −42°−41° (1936)
- Heating degree days
- 1254
- Cooling degree days
- 0
Eagle Creek Colony in March
Highs average 43°6° and lows 17°−9°, with 0.42 in11 mm of precipitation in a typical March.
- Record high
- 79°26° (2004)
- Record low
- −34°−37° (2002)
- Heating degree days
- 1091
- Cooling degree days
- 0
Eagle Creek Colony in April
Highs average 55°13° and lows 27°−3°, with 0.99 in25 mm of precipitation in a typical April.
- Record high
- 89°32° (1939)
- Record low
- −17°−27° (1940)
- Heating degree days
- 718
- Cooling degree days
- 0
Eagle Creek Colony in May
Highs average 65°18° and lows 37°3°, with 1.7 in42 mm of precipitation in a typical May.
- Record high
- 94°34° (1936)
- Record low
- 7°−14° (1954)
- Heating degree days
- 430
- Cooling degree days
- 4
Eagle Creek Colony in June
Highs average 72°22° and lows 45°7°, with 2.6 in66 mm of precipitation in a typical June.
- Record high
- 102°39° (1933)
- Record low
- 22°−6° (1935)
- Heating degree days
- 207
- Cooling degree days
- 18
Eagle Creek Colony in July
Highs average 82°28° and lows 50°10°, with 1.1 in28 mm of precipitation in a typical July.
- Record high
- 105°41° (1973)
- Record low
- 31°−1° (1935)
- Heating degree days
- 70
- Cooling degree days
- 98
Eagle Creek Colony in August
Highs average 81°27° and lows 49°9°, with 0.88 in22 mm of precipitation in a typical August.
- Record high
- 108°42° (1961)
- Record low
- 29°−2° (1934)
- Heating degree days
- 91
- Cooling degree days
- 88
Eagle Creek Colony in September
Highs average 70°21° and lows 39°4°, with 1.1 in27 mm of precipitation in a typical September.
- Record high
- 98°37° (1967)
- Record low
- 2°−17° (1934)
- Heating degree days
- 324
- Cooling degree days
- 12
Eagle Creek Colony in OctoberThis month
Highs average 57°14° and lows 26°−3°, with 0.58 in15 mm of precipitation in a typical October.
- Record high
- 90°32° (1943)
- Record low
- −15°−26° (1935)
- Heating degree days
- 735
- Cooling degree days
- 0
Eagle Creek Colony in November
Highs average 41°5° and lows 15°−9°, with 0.44 in11 mm of precipitation in a typical November.
- Record high
- 74°23° (1936)
- Record low
- −33°−36° (1959)
- Heating degree days
- 1106
- Cooling degree days
- 0
Eagle Creek Colony in December
Highs average 32°0° and lows 6°−15°, with 0.29 in7.4 mm of precipitation in a typical December.
- Record high
- 68°20° (1939)
- Record low
- −40° (1924)
- Heating degree days
- 1427
- Cooling degree days
- 0