Carthage weather by month
What a typical year looks like in Carthage, Indiana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Rushville, 18 km from Carthage; records cover 1901–2026.
The year at a glance
- Precipitation a year
- 45.6 in1158 mm
- Snow a year
- 16 in40 cm
- Last spring freeze
- Apr 13
- First fall freeze
- Oct 19
- Heating degree days
- 5,684
- Cooling degree days
- 882
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Carthage in January
Highs average 34°1° and lows 19°−7°, with 3.6 in91 mm of precipitation and 6 in16 cm of snow in a typical January.
- Record high
- 71°22° (1906)
- Record low
- −31°−35° (1994)
- Heating degree days
- 1186
- Cooling degree days
- 0
Carthage in February
Highs average 39°4° and lows 22°−5°, with 2.5 in63 mm of precipitation and 3 in9 cm of snow in a typical February.
- Record high
- 75°24° (2018)
- Record low
- −18°−28° (1951)
- Heating degree days
- 964
- Cooling degree days
- 0
Carthage in March
Highs average 50°10° and lows 30°−1°, with 3.5 in89 mm of precipitation and 2.8 in7.1 cm of snow in a typical March.
- Record high
- 87°31° (2026)
- Record low
- −10°−23° (1943)
- Heating degree days
- 772
- Cooling degree days
- 1
Carthage in April
Highs average 63°17° and lows 41°5°, with 4.9 in123 mm of precipitation in a typical April.
- Record high
- 89°32° (1925)
- Record low
- 14°−10° (1923)
- Heating degree days
- 413
- Cooling degree days
- 8
Carthage in May
Highs average 73°23° and lows 52°11°, with 5.1 in130 mm of precipitation in a typical May.
- Record high
- 96°36° (1911)
- Record low
- 26°−3° (1906)
- Heating degree days
- 158
- Cooling degree days
- 71
Carthage in June
Highs average 81°27° and lows 61°16°, with 5.1 in129 mm of precipitation in a typical June.
- Record high
- 102°39° (2012)
- Record low
- 31°−1° (1966)
- Heating degree days
- 21
- Cooling degree days
- 193
Carthage in July
Highs average 83°29° and lows 64°18°, with 4.3 in108 mm of precipitation in a typical July.
- Record high
- 108°42° (1901)
- Record low
- 40°4° (1937)
- Heating degree days
- 3
- Cooling degree days
- 266
Carthage in August
Highs average 82°28° and lows 62°17°, with 3.6 in92 mm of precipitation in a typical August.
- Record high
- 103°39° (1936)
- Record low
- 36°2° (1915)
- Heating degree days
- 7
- Cooling degree days
- 224
Carthage in September
Highs average 77°25° and lows 54°12°, with 3.1 in79 mm of precipitation in a typical September.
- Record high
- 101°38° (1953)
- Record low
- 22°−6° (1928)
- Heating degree days
- 85
- Cooling degree days
- 102
Carthage in OctoberThis month
Highs average 65°18° and lows 43°6°, with 3.2 in81 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 91°33° (2019)
- Record low
- 10°−12° (1906)
- Heating degree days
- 360
- Cooling degree days
- 16
Carthage in November
Highs average 51°10° and lows 33°0°, with 3.6 in92 mm of precipitation and 0.3 in0.8 cm of snow in a typical November.
- Record high
- 83°28° (1950)
- Record low
- −5°−21° (1930)
- Heating degree days
- 701
- Cooling degree days
- 1
Carthage in December
Highs average 40°4° and lows 25°−4°, with 3.2 in81 mm of precipitation and 3 in8 cm of snow in a typical December.
- Record high
- 72°22° (1982)
- Record low
- −23°−31° (1989)
- Heating degree days
- 1014
- Cooling degree days
- 0