Chamberlain weather by month
What a typical year looks like in Chamberlain, South Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Chamberlain 5 S, 7 km from Chamberlain; records cover 1980–2026.
The year at a glance
- Precipitation a year
- 24.1 in612 mm
- Snow a year
- 43 in110 cm
- Last spring freeze
- May 8
- First fall freeze
- Oct 7
- Heating degree days
- 7,373
- Cooling degree days
- 794
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −13°−25° (heating, 99%) and 100°38° (cooling, 1%).
Month by month
Chamberlain in January
Highs average 29°−2° and lows 9°−13°, with 0.54 in14 mm of precipitation and 7 in19 cm of snow in a typical January.
- Record high
- 68°20° (1981)
- Record low
- −30°−34° (2018)
- Heating degree days
- 1426
- Cooling degree days
- 0
Chamberlain in February
Highs average 34°1° and lows 12°−11°, with 0.6 in15 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 75°24° (1995)
- Record low
- −34°−37° (1994)
- Heating degree days
- 1174
- Cooling degree days
- 0
Chamberlain in March
Highs average 45°7° and lows 22°−5°, with 1.1 in27 mm of precipitation and 7 in18 cm of snow in a typical March.
- Record high
- 88°31° (2012)
- Record low
- −19°−28° (1998)
- Heating degree days
- 966
- Cooling degree days
- 0
Chamberlain in April
Highs average 57°14° and lows 33°0°, with 2.7 in67 mm of precipitation and 7 in17 cm of snow in a typical April.
- Record high
- 95°35° (2026)
- Record low
- 1°−17° (2018)
- Heating degree days
- 597
- Cooling degree days
- 2
Chamberlain in May
Highs average 69°21° and lows 45°7°, with 3.5 in89 mm of precipitation in a typical May.
- Record high
- 100°38° (2004)
- Record low
- 24°−4° (1981)
- Heating degree days
- 278
- Cooling degree days
- 27
Chamberlain in June
Highs average 80°26° and lows 56°13°, with 4.3 in108 mm of precipitation in a typical June.
- Record high
- 111°44° (1988)
- Record low
- 32°0° (1998)
- Heating degree days
- 53
- Cooling degree days
- 136
Chamberlain in July
Highs average 87°31° and lows 62°16°, with 2.8 in72 mm of precipitation in a typical July.
- Record high
- 113°45° (2003)
- Record low
- 42°6° (2025)
- Heating degree days
- 8
- Cooling degree days
- 294
Chamberlain in August
Highs average 85°30° and lows 59°15°, with 3 in77 mm of precipitation in a typical August.
- Record high
- 112°44° (1988)
- Record low
- 35°2° (2024)
- Heating degree days
- 15
- Cooling degree days
- 240
Chamberlain in September
Highs average 77°25° and lows 50°10°, with 2.3 in58 mm of precipitation in a typical September.
- Record high
- 105°41° (2023)
- Record low
- 24°−4° (1991)
- Heating degree days
- 136
- Cooling degree days
- 88
Chamberlain in OctoberThis month
Highs average 62°17° and lows 36°2°, with 2 in50 mm of precipitation and 1.4 in3.6 cm of snow in a typical October.
- Record high
- 98°37° (1997)
- Record low
- 4°−16° (2020)
- Heating degree days
- 505
- Cooling degree days
- 7
Chamberlain in November
Highs average 46°8° and lows 23°−5°, with 0.81 in21 mm of precipitation and 5 in13 cm of snow in a typical November.
- Record high
- 87°31° (2016)
- Record low
- −13°−25° (1985)
- Heating degree days
- 912
- Cooling degree days
- 0
Chamberlain in December
Highs average 33°0° and lows 13°−10°, with 0.53 in13 mm of precipitation and 8 in19 cm of snow in a typical December.
- Record high
- 73°23° (1998)
- Record low
- −30°−34° (1989)
- Heating degree days
- 1303
- Cooling degree days
- 0