New Witten weather by month
What a typical year looks like in New Witten, South Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Winner, 21 km from New Witten; records cover 1910–2026.
The year at a glance
- Precipitation a year
- 23.2 in589 mm
- Snow a year
- 49 in125 cm
- Last spring freeze
- May 3
- First fall freeze
- Oct 10
- Heating degree days
- 6,544
- Cooling degree days
- 997
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −9°−23° (heating, 99%) and 101°38° (cooling, 1%).
Month by month
New Witten in January
Highs average 35°2° and lows 13°−11°, with 0.54 in14 mm of precipitation and 7 in18 cm of snow in a typical January.
- Record high
- 73°23° (1981)
- Record low
- −28°−33° (2018)
- Heating degree days
- 1276
- Cooling degree days
- 0
New Witten in February
Highs average 39°4° and lows 15°−9°, with 0.64 in16 mm of precipitation and 7 in18 cm of snow in a typical February.
- Record high
- 78°26° (2006)
- Record low
- −38°−39° (1936)
- Heating degree days
- 1061
- Cooling degree days
- 0
New Witten in March
Highs average 50°10° and lows 24°−4°, with 1.1 in28 mm of precipitation and 8 in21 cm of snow in a typical March.
- Record high
- 91°33° (1910)
- Record low
- −19°−28° (1943)
- Heating degree days
- 868
- Cooling degree days
- 0
New Witten in April
Highs average 61°16° and lows 35°2°, with 2.8 in71 mm of precipitation and 9 in23 cm of snow in a typical April.
- Record high
- 99°37° (1980)
- Record low
- 1°−17° (1936)
- Heating degree days
- 523
- Cooling degree days
- 4
New Witten in May
Highs average 72°22° and lows 47°8°, with 3.6 in92 mm of precipitation in a typical May.
- Record high
- 106°41° (1934)
- Record low
- 17°−8° (1931)
- Heating degree days
- 225
- Cooling degree days
- 43
New Witten in June
Highs average 82°28° and lows 57°14°, with 3.9 in100 mm of precipitation in a typical June.
- Record high
- 110°43° (1936)
- Record low
- 30°−1° (1946)
- Heating degree days
- 38
- Cooling degree days
- 171
New Witten in July
Highs average 90°32° and lows 63°17°, with 2.6 in67 mm of precipitation in a typical July.
- Record high
- 115°46° (1934)
- Record low
- 40°4° (1912)
- Heating degree days
- 2
- Cooling degree days
- 354
New Witten in August
Highs average 87°31° and lows 61°16°, with 2.4 in61 mm of precipitation in a typical August.
- Record high
- 112°44° (1965)
- Record low
- 34°1° (1935)
- Heating degree days
- 9
- Cooling degree days
- 292
New Witten in September
Highs average 80°26° and lows 52°11°, with 2.2 in55 mm of precipitation in a typical September.
- Record high
- 108°42° (1931)
- Record low
- 20°−7° (1935)
- Heating degree days
- 97
- Cooling degree days
- 120
New Witten in OctoberThis month
Highs average 65°18° and lows 38°4°, with 1.8 in46 mm of precipitation and 1.9 in4.8 cm of snow in a typical October.
- Record high
- 97°36° (1947)
- Record low
- −2°−19° (1925)
- Heating degree days
- 430
- Cooling degree days
- 13
New Witten in November
Highs average 50°10° and lows 26°−4°, with 0.81 in21 mm of precipitation and 6 in15 cm of snow in a typical November.
- Record high
- 89°32° (2016)
- Record low
- −13°−25° (1940)
- Heating degree days
- 822
- Cooling degree days
- 0
New Witten in December
Highs average 37°3° and lows 16°−9°, with 0.69 in18 mm of precipitation and 10 in24 cm of snow in a typical December.
- Record high
- 76°24° (1939)
- Record low
- −29°−34° (1989)
- Heating degree days
- 1193
- Cooling degree days
- 0