Columbus, Indiana Climate by Month
Columbus, Indiana, United States
Hot summers and cold winters, with rain spread through the year.
Hot summers and cold winters, with rain spread through the year: that's Columbus's climate in short. Expect highs of 86°F (30°C) in July and 38°F (4°C) in January, with the coldest nights (January) near 21°F (-6°C). About 43 in (1096 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 86°F(30°C)
- Average high, July
- Coldest nights
- 21°F(-6°C)
- Average low, January
- Rain per year
- 43 in(1096 mm)
- No clear rainy season
- Humidity
- 72%
- Sunniest: July
Best and worst months in Columbus
Best for weatherThe most comfortable weather comes in May and September, with highs around 77°F (25°C) and about 3.9 in (100 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 38°F (4°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Columbus weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 38°F(4°C) | 21°F(-6°C) | 3.1 in(79 mm) | 89% | 1.7 |
| FebFebruary | 42°F(6°C) | 24°F(-5°C) | 2.8 in(71 mm) | 78% | 2.6 |
| MarMarch | 53°F(12°C) | 33°F(1°C) | 3.8 in(97 mm) | 74% | 3.7 |
| AprApril | 65°F(19°C) | 43°F(6°C) | 4.8 in(123 mm) | 63% | 4.6 |
| MayMayBest | 75°F(24°C) | 53°F(12°C) | 4.9 in(125 mm) | 68% | 5.3 |
| JunJune | 83°F(28°C) | 62°F(17°C) | 3.6 in(92 mm) | 70% | 5.9 |
| JulJuly | 86°F(30°C) | 65°F(18°C) | 3.8 in(97 mm) | 73% | 6.1 |
| AugAugust | 85°F(30°C) | 63°F(17°C) | 3.4 in(87 mm) | 72% | 5.5 |
| SepSeptemberBest | 80°F(27°C) | 56°F(13°C) | 3.0 in(75 mm) | 69% | 4.5 |
| OctOctober | 68°F(20°C) | 44°F(7°C) | 2.9 in(74 mm) | 65% | 3.1 |
| NovNovember | 54°F(12°C) | 34°F(1°C) | 3.5 in(90 mm) | 71% | 2.0 |
| DecDecember | 43°F(6°C) | 26°F(-3°C) | 3.4 in(86 mm) | 75% | 1.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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