Box Elder weather by month
What a typical year looks like in Box Elder, Montana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Big Sandy, 21 km from Box Elder; records cover 1921–2026.
The year at a glance
- Precipitation a year
- 13.3 in337 mm
- Snow a year
- Rare
- Last spring freeze
- May 21
- First fall freeze
- Sep 28
- Heating degree days
- 7,692
- Cooling degree days
- 457
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −22°−30° (heating, 99%) and 98°37° (cooling, 1%).
Month by month
Box Elder in January
Highs average 31°−1° and lows 10°−12°, with 0.45 in11 mm of precipitation in a typical January.
- Record high
- 65°18° (1968)
- Record low
- −51°−46° (1969)
- Heating degree days
- 1386
- Cooling degree days
- 0
Box Elder in February
Highs average 35°2° and lows 13°−10°, with 0.39 in9.9 mm of precipitation in a typical February.
- Record high
- 76°24° (1992)
- Record low
- −52°−47° (1936)
- Heating degree days
- 1140
- Cooling degree days
- 0
Box Elder in March
Highs average 46°8° and lows 22°−6°, with 0.47 in12 mm of precipitation in a typical March.
- Record high
- 81°27° (2004)
- Record low
- −44°−42° (1951)
- Heating degree days
- 961
- Cooling degree days
- 0
Box Elder in April
Highs average 58°15° and lows 33°0°, with 1.3 in32 mm of precipitation in a typical April.
- Record high
- 94°34° (1939)
- Record low
- −15°−26° (1936)
- Heating degree days
- 586
- Cooling degree days
- 0
Box Elder in May
Highs average 68°20° and lows 41°5°, with 2.1 in53 mm of precipitation in a typical May.
- Record high
- 100°38° (1936)
- Record low
- 9°−13° (1954)
- Heating degree days
- 335
- Cooling degree days
- 11
Box Elder in June
Highs average 76°24° and lows 49°9°, with 3.1 in79 mm of precipitation in a typical June.
- Record high
- 106°41° (1933)
- Record low
- 22°−6° (1923)
- Heating degree days
- 127
- Cooling degree days
- 49
Box Elder in July
Highs average 86°30° and lows 55°13°, with 1.4 in36 mm of precipitation in a typical July.
- Record high
- 109°43° (1933)
- Record low
- 35°2° (1952)
- Heating degree days
- 29
- Cooling degree days
- 192
Box Elder in August
Highs average 85°29° and lows 53°12°, with 0.99 in25 mm of precipitation in a typical August.
- Record high
- 111°44° (1961)
- Record low
- 27°−3° (1995)
- Heating degree days
- 42
- Cooling degree days
- 169
Box Elder in September
Highs average 74°23° and lows 44°7°, with 1.2 in29 mm of precipitation in a typical September.
- Record high
- 104°40° (2022)
- Record low
- 12°−11° (1926)
- Heating degree days
- 215
- Cooling degree days
- 34
Box Elder in OctoberThis month
Highs average 59°15° and lows 33°0°, with 0.93 in24 mm of precipitation in a typical October.
- Record high
- 92°33° (1942)
- Record low
- −19°−28° (1991)
- Heating degree days
- 603
- Cooling degree days
- 2
Box Elder in November
Highs average 44°6° and lows 22°−6°, with 0.6 in15 mm of precipitation in a typical November.
- Record high
- 78°26° (1953)
- Record low
- −33°−36° (1985)
- Heating degree days
- 974
- Cooling degree days
- 0
Box Elder in December
Highs average 34°1° and lows 13°−11°, with 0.43 in11 mm of precipitation in a typical December.
- Record high
- 72°22° (1939)
- Record low
- −50°−46° (1983)
- Heating degree days
- 1294
- Cooling degree days
- 0