Aberdeen weather by month
What a typical year looks like in Aberdeen, South Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Aberdeen Regional Airport, 5 km from Aberdeen; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 21.8 in554 mm
- Snow a year
- 43 in108 cm
- Last spring freeze
- May 10
- First fall freeze
- Sep 23
- Heating degree days
- 8,221
- Cooling degree days
- 630
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −20°−29° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Aberdeen in January
Highs average 24°−5° and lows 2°−17°, with 0.55 in14 mm of precipitation and 8 in20 cm of snow in a typical January.
- Record high
- 63°17° (2012)
- Record low
- −46°−43° (1912)
- Heating degree days
- 1618
- Cooling degree days
- 0
Aberdeen in February
Highs average 29°−2° and lows 6°−14°, with 0.62 in16 mm of precipitation and 9 in22 cm of snow in a typical February.
- Record high
- 70°21° (1958)
- Record low
- −46°−43° (1895)
- Heating degree days
- 1331
- Cooling degree days
- 0
Aberdeen in March
Highs average 42°5° and lows 19°−7°, with 0.89 in23 mm of precipitation and 6 in16 cm of snow in a typical March.
- Record high
- 86°30° (1946)
- Record low
- −32°−36° (1995)
- Heating degree days
- 1068
- Cooling degree days
- 0
Aberdeen in April
Highs average 58°14° and lows 31°0°, with 1.9 in49 mm of precipitation and 4 in11 cm of snow in a typical April.
- Record high
- 98°37° (1992)
- Record low
- −6°−21° (2018)
- Heating degree days
- 616
- Cooling degree days
- 1
Aberdeen in May
Highs average 70°21° and lows 44°7°, with 3.3 in83 mm of precipitation in a typical May.
- Record high
- 110°43° (1934)
- Record low
- 13°−11° (2005)
- Heating degree days
- 268
- Cooling degree days
- 31
Aberdeen in June
Highs average 80°27° and lows 55°13°, with 3.8 in96 mm of precipitation in a typical June.
- Record high
- 112°44° (1931)
- Record low
- 28°−2° (1901)
- Heating degree days
- 51
- Cooling degree days
- 130
Aberdeen in July
Highs average 85°29° and lows 60°15°, with 3.1 in78 mm of precipitation in a typical July.
- Record high
- 115°46° (1936)
- Record low
- 35°2° (1915)
- Heating degree days
- 10
- Cooling degree days
- 236
Aberdeen in August
Highs average 83°28° and lows 57°14°, with 2.2 in57 mm of precipitation in a typical August.
- Record high
- 112°44° (1965)
- Record low
- 30°−1° (1893)
- Heating degree days
- 26
- Cooling degree days
- 172
Aberdeen in September
Highs average 75°24° and lows 47°8°, with 2 in51 mm of precipitation in a typical September.
- Record high
- 107°42° (1931)
- Record low
- 11°−12° (1939)
- Heating degree days
- 180
- Cooling degree days
- 56
Aberdeen in OctoberThis month
Highs average 59°15° and lows 33°1°, with 2.1 in54 mm of precipitation and 1.3 in3.3 cm of snow in a typical October.
- Record high
- 96°36° (1963)
- Record low
- −6°−21° (1919)
- Heating degree days
- 583
- Cooling degree days
- 4
Aberdeen in November
Highs average 43°6° and lows 19°−7°, with 0.74 in19 mm of precipitation and 7 in17 cm of snow in a typical November.
- Record high
- 79°26° (1904)
- Record low
- −27°−33° (1964)
- Heating degree days
- 1022
- Cooling degree days
- 0
Aberdeen in December
Highs average 29°−2° and lows 8°−13°, with 0.61 in15 mm of precipitation and 8 in20 cm of snow in a typical December.
- Record high
- 69°21° (1939)
- Record low
- −39° (1967)
- Heating degree days
- 1448
- Cooling degree days
- 0