Alcester weather by month
What a typical year looks like in Alcester, South Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Centerville 6 SE, 23 km from Alcester; records cover 1905–2026.
The year at a glance
- Precipitation a year
- 26.9 in683 mm
- Snow a year
- 31 in77 cm
- Last spring freeze
- Apr 29
- First fall freeze
- Oct 2
- Heating degree days
- 7,492
- Cooling degree days
- 744
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −16°−27° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Alcester in January
Highs average 27°−3° and lows 7°−14°, with 0.44 in11 mm of precipitation and 5 in13 cm of snow in a typical January.
- Record high
- 70°21° (1981)
- Record low
- −44°−42° (1912)
- Heating degree days
- 1492
- Cooling degree days
- 0
Alcester in February
Highs average 32°0° and lows 11°−12°, with 0.63 in16 mm of precipitation and 6 in15 cm of snow in a typical February.
- Record high
- 73°23° (2017)
- Record low
- −35°−37° (1936)
- Heating degree days
- 1219
- Cooling degree days
- 0
Alcester in March
Highs average 45°7° and lows 23°−5°, with 1.4 in35 mm of precipitation and 5 in11 cm of snow in a typical March.
- Record high
- 93°34° (2026)
- Record low
- −21°−29° (1913)
- Heating degree days
- 965
- Cooling degree days
- 0
Alcester in April
Highs average 59°15° and lows 34°1°, with 2.7 in68 mm of precipitation and 2.9 in7.4 cm of snow in a typical April.
- Record high
- 97°36° (1926)
- Record low
- −6°−21° (2018)
- Heating degree days
- 567
- Cooling degree days
- 4
Alcester in May
Highs average 70°21° and lows 47°8°, with 3.9 in98 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 109°43° (1934)
- Record low
- 19°−7° (1909)
- Heating degree days
- 245
- Cooling degree days
- 44
Alcester in June
Highs average 80°27° and lows 58°15°, with 4.3 in109 mm of precipitation in a typical June.
- Record high
- 108°42° (1931)
- Record low
- 33°1° (1935)
- Heating degree days
- 39
- Cooling degree days
- 166
Alcester in July
Highs average 84°29° and lows 62°17°, with 3.1 in77 mm of precipitation in a typical July.
- Record high
- 113°45° (1936)
- Record low
- 38°3° (1971)
- Heating degree days
- 9
- Cooling degree days
- 259
Alcester in August
Highs average 82°28° and lows 59°15°, with 3.2 in81 mm of precipitation in a typical August.
- Record high
- 111°44° (1934)
- Record low
- 32°0° (1986)
- Heating degree days
- 20
- Cooling degree days
- 190
Alcester in September
Highs average 75°24° and lows 50°10°, with 3.1 in79 mm of precipitation in a typical September.
- Record high
- 106°41° (1931)
- Record low
- 19°−7° (1984)
- Heating degree days
- 150
- Cooling degree days
- 74
Alcester in OctoberThis month
Highs average 62°16° and lows 36°2°, with 2.3 in59 mm of precipitation and 0.7 in1.8 cm of snow in a typical October.
- Record high
- 95°35° (1963)
- Record low
- −6°−21° (1925)
- Heating degree days
- 509
- Cooling degree days
- 7
Alcester in November
Highs average 45°7° and lows 23°−5°, with 1.2 in31 mm of precipitation and 5 in13 cm of snow in a typical November.
- Record high
- 82°28° (1999)
- Record low
- −20°−29° (1977)
- Heating degree days
- 933
- Cooling degree days
- 0
Alcester in December
Highs average 31°0° and lows 12°−11°, with 0.66 in17 mm of precipitation and 6 in15 cm of snow in a typical December.
- Record high
- 67°19° (1939)
- Record low
- −39° (1917)
- Heating degree days
- 1344
- Cooling degree days
- 0