Pleasant Valley Colony weather by month
What a typical year looks like in Pleasant Valley Colony, Montana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at GREAT FALLS 16ST, 24 km from Pleasant Valley Colony; records cover 1891–2026.
The year at a glance
- Precipitation a year
- 15.4 in392 mm
- Snow a year
- Rare
- Last spring freeze
- May 13
- First fall freeze
- Sep 28
- Heating degree days
- 6,942
- Cooling degree days
- 423
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −14°−26° (heating, 99%) and 97°36° (cooling, 1%).
Month by month
Pleasant Valley Colony in January
Highs average 37°3° and lows 18°−8°, with 0.61 in15 mm of precipitation in a typical January.
- Record high
- 68°20° (2015)
- Record low
- −44°−42° (1909)
- Heating degree days
- 1173
- Cooling degree days
- 0
Pleasant Valley Colony in February
Highs average 39°4° and lows 19°−7°, with 0.58 in15 mm of precipitation in a typical February.
- Record high
- 71°22° (2026)
- Record low
- −49°−45° (1936)
- Heating degree days
- 1018
- Cooling degree days
- 0
Pleasant Valley Colony in March
Highs average 48°9° and lows 25°−4°, with 0.63 in16 mm of precipitation in a typical March.
- Record high
- 78°26° (2015)
- Record low
- −32°−36° (1932)
- Heating degree days
- 878
- Cooling degree days
- 0
Pleasant Valley Colony in April
Highs average 58°15° and lows 33°1°, with 1.8 in45 mm of precipitation in a typical April.
- Record high
- 88°31° (1910)
- Record low
- −10°−23° (1936)
- Heating degree days
- 578
- Cooling degree days
- 0
Pleasant Valley Colony in May
Highs average 67°19° and lows 42°5°, with 2.7 in68 mm of precipitation in a typical May.
- Record high
- 100°38° (1919)
- Record low
- 12°−11° (1954)
- Heating degree days
- 335
- Cooling degree days
- 8
Pleasant Valley Colony in June
Highs average 75°24° and lows 50°10°, with 2.7 in70 mm of precipitation in a typical June.
- Record high
- 102°39° (1900)
- Record low
- 32°0° (1919)
- Heating degree days
- 120
- Cooling degree days
- 45
Pleasant Valley Colony in July
Highs average 86°30° and lows 55°13°, with 1.3 in34 mm of precipitation in a typical July.
- Record high
- 107°42° (1933)
- Record low
- 35°2° (1894)
- Heating degree days
- 18
- Cooling degree days
- 186
Pleasant Valley Colony in August
Highs average 84°29° and lows 53°12°, with 1.3 in33 mm of precipitation in a typical August.
- Record high
- 103°39° (1955)
- Record low
- 34°1° (1910)
- Heating degree days
- 38
- Cooling degree days
- 151
Pleasant Valley Colony in September
Highs average 73°23° and lows 45°7°, with 1.4 in35 mm of precipitation in a typical September.
- Record high
- 97°36° (1893)
- Record low
- 10°−12° (1926)
- Heating degree days
- 220
- Cooling degree days
- 30
Pleasant Valley Colony in OctoberThis month
Highs average 59°15° and lows 36°2°, with 1.1 in29 mm of precipitation in a typical October.
- Record high
- 91°33° (1943)
- Record low
- −10°−23° (1919)
- Heating degree days
- 545
- Cooling degree days
- 3
Pleasant Valley Colony in November
Highs average 45°7° and lows 26°−3°, with 0.7 in18 mm of precipitation in a typical November.
- Record high
- 75°24° (2010)
- Record low
- −25°−32° (1903)
- Heating degree days
- 880
- Cooling degree days
- 0
Pleasant Valley Colony in December
Highs average 37°3° and lows 20°−7°, with 0.56 in14 mm of precipitation in a typical December.
- Record high
- 69°21° (1939)
- Record low
- −38°−39° (1919)
- Heating degree days
- 1139
- Cooling degree days
- 0