Climate of Indiana, USA
Area-weighted average across Indiana. For where people actually live and travel, see the cities below.
Indiana, a subdivision of United States of America, has a strongly continental climate on average. Area-weighted monthly temperatures across the whole territory range from -3.5°C / 25.7°F in January to 23.5°C / 74.3°F in July, with rainfall from 57 mm / 2.2 in to 110 mm / 4.3 in depending on the season (1039 mm / 40.9 in total across the year). See the 2 cities listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -3.5°C25.7°F | 59 mm2.3″ | Snowy |
| February | -1.2°C29.8°F | 57 mm2.2″ | Snowy |
| March | 4.6°C40.3°F | 87 mm3.4″ | — |
| April | 10.5°C50.9°F | 101 mm4″ | — |
| May | 16.4°C61.5°F | 110 mm4.3″ | — |
| June | 21.4°C70.5°F | 102 mm4″ | — |
| July | 23.5°C74.3°F | 106 mm4.2″ | — |
| August | 22.4°C72.3°F | 95 mm3.7″ | — |
| September | 18.7°C65.7°F | 81 mm3.2″ | — |
| October | 12.2°C54°F | 73 mm2.9″ | — |
| November | 5.8°C42.4°F | 89 mm3.5″ | — |
| December | -0.3°C31.5°F | 79 mm3.1″ | Snowy |
Frequently asked questions
What is the best time to visit Indiana?
Indiana, United States of America does not have a clear sunny-and-dry window by our cutoffs. The warmest month is July at 23.5°C / 74.3°F, and the driest is February at 57 mm / 2.2 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Indiana?
Indiana, United States of America has area-weighted monthly average temperatures ranging from -3.5°C / 25.7°F in January to 23.5°C / 74.3°F in July. Annual rainfall averages about 1039 mm / 40.9 in, with the wettest month being May (110 mm / 4.3 in) and the driest February (57 mm / 2.2 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Indiana?
The hottest month in Indiana is July, with an area-wide average temperature of 23.5°C / 74.3°F.
What is the coldest month in Indiana?
The coldest month in Indiana is January, with an area-wide average temperature of -3.5°C / 25.7°F.
When does it rain most in Indiana?
The wettest month in Indiana is May, averaging about 110 mm / 4.3 in of rainfall. The driest is February with about 57 mm / 2.2 in.