Sheldon weather by month
What a typical year looks like in Sheldon, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Primghar, 20 km from Sheldon; records cover 1895–2026.
The year at a glance
- Precipitation a year
- 31.4 in796 mm
- Snow a year
- 35 in88 cm
- Last spring freeze
- Apr 24
- First fall freeze
- Oct 7
- Heating degree days
- 6,988
- Cooling degree days
- 892
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 93°34° (cooling, 1%).
Month by month
Sheldon in January
Highs average 27°−3° and lows 9°−13°, with 0.82 in21 mm of precipitation and 8 in21 cm of snow in a typical January.
- Record high
- 64°18° (1981)
- Record low
- −30°−34° (1972)
- Heating degree days
- 1455
- Cooling degree days
- 0
Sheldon in February
Highs average 32°0° and lows 14°−10°, with 0.89 in23 mm of precipitation and 7 in17 cm of snow in a typical February.
- Record high
- 70°21° (1896)
- Record low
- −38°−39° (1899)
- Heating degree days
- 1181
- Cooling degree days
- 0
Sheldon in March
Highs average 46°8° and lows 26°−4°, with 1.7 in43 mm of precipitation and 6 in16 cm of snow in a typical March.
- Record high
- 88°31° (2026)
- Record low
- −20°−29° (1948)
- Heating degree days
- 914
- Cooling degree days
- 1
Sheldon in April
Highs average 61°16° and lows 37°3°, with 3.3 in84 mm of precipitation and 2.4 in6.1 cm of snow in a typical April.
- Record high
- 93°34° (1980)
- Record low
- 2°−17° (2018)
- Heating degree days
- 496
- Cooling degree days
- 7
Sheldon in May
Highs average 72°22° and lows 49°10°, with 4.1 in104 mm of precipitation in a typical May.
- Record high
- 100°38° (1967)
- Record low
- 22°−6° (1967)
- Heating degree days
- 196
- Cooling degree days
- 60
Sheldon in June
Highs average 82°28° and lows 60°16°, with 5 in126 mm of precipitation in a typical June.
- Record high
- 103°39° (1988)
- Record low
- 34°1° (2004)
- Heating degree days
- 28
- Cooling degree days
- 199
Sheldon in July
Highs average 85°29° and lows 64°18°, with 3.9 in99 mm of precipitation in a typical July.
- Record high
- 110°43° (1901)
- Record low
- 40°4° (1895)
- Heating degree days
- 5
- Cooling degree days
- 291
Sheldon in August
Highs average 82°28° and lows 62°17°, with 3.6 in91 mm of precipitation in a typical August.
- Record high
- 101°38° (1947)
- Record low
- 38°3° (1950)
- Heating degree days
- 9
- Cooling degree days
- 223
Sheldon in September
Highs average 76°25° and lows 53°12°, with 3.3 in84 mm of precipitation in a typical September.
- Record high
- 100°38° (1895)
- Record low
- 17°−8° (1899)
- Heating degree days
- 108
- Cooling degree days
- 99
Sheldon in OctoberThis month
Highs average 62°17° and lows 40°5°, with 2.3 in58 mm of precipitation and 0.4 in1 cm of snow in a typical October.
- Record high
- 93°34° (1963)
- Record low
- 8°−13° (1895)
- Heating degree days
- 435
- Cooling degree days
- 12
Sheldon in November
Highs average 45°7° and lows 27°−3°, with 1.5 in38 mm of precipitation and 2.5 in6.4 cm of snow in a typical November.
- Record high
- 78°26° (1899)
- Record low
- −14°−26° (1897)
- Heating degree days
- 870
- Cooling degree days
- 0
Sheldon in December
Highs average 31°0° and lows 15°−9°, with 1 in26 mm of precipitation and 8 in21 cm of snow in a typical December.
- Record high
- 66°19° (1899)
- Record low
- −28°−33° (1989)
- Heating degree days
- 1291
- Cooling degree days
- 0