Mongo weather by month
What a typical year looks like in Mongo, Indiana: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Angola, 22 km from Mongo; records cover 1898–2026.
The year at a glance
- Precipitation a year
- 38.8 in985 mm
- Snow a year
- 39 in99 cm
- Last spring freeze
- Apr 29
- First fall freeze
- Oct 11
- Heating degree days
- 6,677
- Cooling degree days
- 620
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −5°−21° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Mongo in January
Highs average 31°−1° and lows 16°−9°, with 2.6 in65 mm of precipitation and 12 in30 cm of snow in a typical January.
- Record high
- 67°19° (1950)
- Record low
- −27°−33° (1981)
- Heating degree days
- 1294
- Cooling degree days
- 0
Mongo in February
Highs average 34°1° and lows 17°−8°, with 2.3 in59 mm of precipitation and 10 in26 cm of snow in a typical February.
- Record high
- 71°22° (2000)
- Record low
- −23°−31° (2019)
- Heating degree days
- 1104
- Cooling degree days
- 0
Mongo in March
Highs average 45°7° and lows 26°−4°, with 2.5 in63 mm of precipitation and 5 in13 cm of snow in a typical March.
- Record high
- 85°29° (2012)
- Record low
- −13°−25° (1978)
- Heating degree days
- 926
- Cooling degree days
- 0
Mongo in April
Highs average 58°14° and lows 36°2°, with 3.6 in91 mm of precipitation and 1 in2.5 cm of snow in a typical April.
- Record high
- 88°31° (1942)
- Record low
- 4°−16° (1982)
- Heating degree days
- 548
- Cooling degree days
- 4
Mongo in May
Highs average 69°21° and lows 48°9°, with 4.4 in112 mm of precipitation in a typical May.
- Record high
- 93°34° (1942)
- Record low
- 22°−6° (2005)
- Heating degree days
- 239
- Cooling degree days
- 40
Mongo in June
Highs average 78°26° and lows 58°14°, with 4.1 in104 mm of precipitation in a typical June.
- Record high
- 102°39° (1934)
- Record low
- 32°0° (1980)
- Heating degree days
- 45
- Cooling degree days
- 138
Mongo in July
Highs average 82°28° and lows 61°16°, with 3.8 in96 mm of precipitation in a typical July.
- Record high
- 106°41° (1936)
- Record low
- 40°4° (1978)
- Heating degree days
- 9
- Cooling degree days
- 211
Mongo in August
Highs average 80°27° and lows 59°15°, with 3.9 in100 mm of precipitation in a typical August.
- Record high
- 102°39° (1947)
- Record low
- 37°3° (1977)
- Heating degree days
- 19
- Cooling degree days
- 163
Mongo in September
Highs average 74°23° and lows 51°11°, with 3.2 in81 mm of precipitation in a typical September.
- Record high
- 101°38° (1939)
- Record low
- 27°−3° (1991)
- Heating degree days
- 136
- Cooling degree days
- 58
Mongo in OctoberThis month
Highs average 61°16° and lows 40°5°, with 3 in75 mm of precipitation and 0.1 in0.3 cm of snow in a typical October.
- Record high
- 97°36° (2007)
- Record low
- 16°−9° (1925)
- Heating degree days
- 451
- Cooling degree days
- 6
Mongo in November
Highs average 47°8° and lows 30°−1°, with 3 in76 mm of precipitation and 2.3 in5.8 cm of snow in a typical November.
- Record high
- 83°28° (1950)
- Record low
- −4°−20° (1950)
- Heating degree days
- 788
- Cooling degree days
- 0
Mongo in December
Highs average 36°2° and lows 22°−5°, with 2.5 in64 mm of precipitation and 8 in21 cm of snow in a typical December.
- Record high
- 71°22° (2015)
- Record low
- −19°−28° (1983)
- Heating degree days
- 1118
- Cooling degree days
- 0