Estelline weather by month
What a typical year looks like in Estelline, South Dakota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Castlewood No. 2, 20 km from Estelline; records cover 2011–2026.
The year at a glance
- Precipitation a year
- 24.3 in618 mm
- Snow a year
- Rare
- Last spring freeze
- May 13
- First fall freeze
- Oct 7
- Heating degree days
- 8,568
- Cooling degree days
- 483
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −19°−28° (heating, 99%) and 93°34° (cooling, 1%).
Month by month
Estelline in January
Highs average 22°−6° and lows 3°−16°, with 0.52 in13 mm of precipitation in a typical January.
- Record high
- 58°14° (2012)
- Record low
- −34°−37° (2019)
- Heating degree days
- 1642
- Cooling degree days
- 0
Estelline in February
Highs average 26°−3° and lows 6°−14°, with 0.58 in15 mm of precipitation in a typical February.
- Record high
- 64°18° (2017)
- Record low
- −30°−34° (2021)
- Heating degree days
- 1370
- Cooling degree days
- 0
Estelline in March
Highs average 39°4° and lows 18°−8°, with 1.1 in28 mm of precipitation in a typical March.
- Record high
- 82°28° (2012)
- Record low
- −20°−29° (2014)
- Heating degree days
- 1140
- Cooling degree days
- 0
Estelline in April
Highs average 54°12° and lows 30°−1°, with 2.1 in54 mm of precipitation in a typical April.
- Record high
- 87°31° (2026)
- Record low
- −4°−20° (2018)
- Heating degree days
- 695
- Cooling degree days
- 1
Estelline in May
Highs average 67°20° and lows 44°6°, with 3.2 in81 mm of precipitation in a typical May.
- Record high
- 98°37° (2018)
- Record low
- 18°−8° (2013)
- Heating degree days
- 316
- Cooling degree days
- 20
Estelline in June
Highs average 78°25° and lows 54°12°, with 4 in101 mm of precipitation in a typical June.
- Record high
- 100°38° (2021)
- Record low
- 38°3° (2012)
- Heating degree days
- 65
- Cooling degree days
- 90
Estelline in July
Highs average 83°28° and lows 59°15°, with 3.5 in89 mm of precipitation in a typical July.
- Record high
- 101°38° (2012)
- Record low
- 40°4° (2013)
- Heating degree days
- 18
- Cooling degree days
- 188
Estelline in August
Highs average 81°27° and lows 56°13°, with 3.1 in78 mm of precipitation in a typical August.
- Record high
- 99°37° (2012)
- Record low
- 38°3° (2012)
- Heating degree days
- 38
- Cooling degree days
- 140
Estelline in September
Highs average 72°22° and lows 47°8°, with 2.7 in68 mm of precipitation in a typical September.
- Record high
- 98°37° (2023)
- Record low
- 21°−6° (2012)
- Heating degree days
- 197
- Cooling degree days
- 42
Estelline in OctoberThis month
Highs average 58°14° and lows 34°1°, with 2.3 in58 mm of precipitation in a typical October.
- Record high
- 91°33° (2023)
- Record low
- 4°−16° (2020)
- Heating degree days
- 599
- Cooling degree days
- 2
Estelline in November
Highs average 41°5° and lows 21°−6°, with 0.76 in19 mm of precipitation in a typical November.
- Record high
- 77°25° (2020)
- Record low
- −16°−27° (2014)
- Heating degree days
- 1025
- Cooling degree days
- 0
Estelline in December
Highs average 27°−3° and lows 9°−13°, with 0.53 in13 mm of precipitation in a typical December.
- Record high
- 59°15° (2023)
- Record low
- −35°−37° (2016)
- Heating degree days
- 1463
- Cooling degree days
- 0