Heltonville weather by month
What a typical year looks like in Heltonville, Indiana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Oolitic Purdue Ex Frm, 16 km from Heltonville; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 48 in1220 mm
- Snow a year
- 16 in42 cm
- Last spring freeze
- Apr 16
- First fall freeze
- Oct 18
- Heating degree days
- 5,312
- Cooling degree days
- 970
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −1°−18° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Heltonville in January
Highs average 38°3° and lows 21°−6°, with 3.4 in85 mm of precipitation and 5 in13 cm of snow in a typical January.
- Record high
- 75°24° (1943)
- Record low
- −29°−34° (1994)
- Heating degree days
- 1111
- Cooling degree days
- 0
Heltonville in February
Highs average 43°6° and lows 23°−5°, with 2.8 in70 mm of precipitation and 5 in12 cm of snow in a typical February.
- Record high
- 77°25° (2018)
- Record low
- −18°−28° (1899)
- Heating degree days
- 904
- Cooling degree days
- 0
Heltonville in March
Highs average 53°12° and lows 31°0°, with 3.9 in99 mm of precipitation and 2.1 in5.3 cm of snow in a typical March.
- Record high
- 87°31° (1929)
- Record low
- −6°−21° (1960)
- Heating degree days
- 716
- Cooling degree days
- 2
Heltonville in April
Highs average 65°18° and lows 41°5°, with 5.1 in130 mm of precipitation and 0.1 in0.3 cm of snow in a typical April.
- Record high
- 92°33° (1925)
- Record low
- 13°−11° (1969)
- Heating degree days
- 377
- Cooling degree days
- 10
Heltonville in May
Highs average 74°23° and lows 52°11°, with 5.6 in142 mm of precipitation in a typical May.
- Record high
- 103°39° (1918)
- Record low
- 27°−3° (1976)
- Heating degree days
- 144
- Cooling degree days
- 68
Heltonville in June
Highs average 82°28° and lows 61°16°, with 5.2 in131 mm of precipitation in a typical June.
- Record high
- 108°42° (1936)
- Record low
- 21°−6° (1895)
- Heating degree days
- 17
- Cooling degree days
- 200
Heltonville in July
Highs average 85°29° and lows 64°18°, with 4.3 in110 mm of precipitation in a typical July.
- Record high
- 111°44° (1901)
- Record low
- 45°7° (1898)
- Heating degree days
- 2
- Cooling degree days
- 292
Heltonville in August
Highs average 85°29° and lows 62°17°, with 3.6 in92 mm of precipitation in a typical August.
- Record high
- 109°43° (1936)
- Record low
- 33°1° (1898)
- Heating degree days
- 4
- Cooling degree days
- 264
Heltonville in September
Highs average 79°26° and lows 55°13°, with 3.4 in85 mm of precipitation in a typical September.
- Record high
- 105°41° (1899)
- Record low
- 27°−3° (1928)
- Heating degree days
- 71
- Cooling degree days
- 117
Heltonville in OctoberThis month
Highs average 67°19° and lows 43°6°, with 3.5 in89 mm of precipitation in a typical October.
- Record high
- 96°36° (1900)
- Record low
- 16°−9° (1981)
- Heating degree days
- 338
- Cooling degree days
- 16
Heltonville in November
Highs average 54°12° and lows 33°0°, with 3.8 in96 mm of precipitation and 0.2 in0.5 cm of snow in a typical November.
- Record high
- 91°33° (1900)
- Record low
- −3°−19° (1958)
- Heating degree days
- 656
- Cooling degree days
- 1
Heltonville in December
Highs average 42°6° and lows 25°−4°, with 3.5 in90 mm of precipitation and 4 in11 cm of snow in a typical December.
- Record high
- 75°24° (1893)
- Record low
- −23°−31° (1989)
- Heating degree days
- 972
- Cooling degree days
- 0