Indiana climate by month
January highs across Indiana range from 31°F in South Bend to 42°F in Evansville; July highs from 83°F in South Bend to 89°F in Evansville. The most common best months across these cities are April, May, September.
Indiana weather month by month
Average of the 6 Indiana cities on this site, computed from NOAA's unrounded values (so it can differ by a degree from averaging the rounded city figures); individual cities differ, sometimes a lot.
| Month | High | Low | Wet days | Snow |
|---|---|---|---|---|
| January | 35°F | 20°F | 12 | 10.4 in |
| February | 39°F | 23°F | 10 | 7.5 in |
| March | 50°F | 32°F | 11 | 3.7 in |
| April | 63°F | 42°F | 12 | 0.4 in |
| May | 73°F | 52°F | 13 | 0.0 in |
| June | 82°F | 62°F | 11 | 0.0 in |
| July | 84°F | 65°F | 10 | 0.0 in |
| August | 83°F | 63°F | 8 | 0.0 in |
| September | 77°F | 55°F | 8 | 0.0 in |
| October | 65°F | 44°F | 9 | 0.1 in |
| November | 51°F | 34°F | 10 | 1.6 in |
| December | 39°F | 25°F | 12 | 7.2 in |
Regional differences
- Warmest winterEvansville: January high 42°F
- Coolest summerSouth Bend: July high 83°F
- Most wet daysSouth Bend: 147 a year
- Fewest wet daysCarmel: 105 a year
- Most snowSouth Bend: 64.5 in a year
Warmest and coolest Indiana city each month
| Month | Warmest | Coolest | Best month for |
|---|---|---|---|
| January | Evansville 42°F | South Bend 31°F | – |
| February | Evansville 47°F | South Bend 35°F | – |
| March | Evansville 57°F | South Bend 46°F | – |
| April | Evansville 68°F | South Bend 59°F | 4 cities |
| May | Evansville 77°F | South Bend 70°F | 6 cities |
| June | Evansville 86°F | South Bend 79°F | – |
| July | Evansville 89°F | South Bend 83°F | – |
| August | Evansville 88°F | South Bend 81°F | – |
| September | Evansville 82°F | South Bend 74°F | 1 city |
| October | Evansville 70°F | South Bend 62°F | – |
| November | Evansville 56°F | South Bend 48°F | – |
| December | Evansville 46°F | South Bend 36°F | – |
By normal daily high. "Best month for": how many of the 6 cities have it among their best months by our comfort score.
Frost and humidity across Indiana
- Earliest typical last frostEvansville: Apr 4
- Latest typical last frostSouth Bend: May 1
- Most muggy daysEvansville: 72 a year
- Fewest muggy daysSouth Bend: 35 a year
All Indiana cities
| City | Jan high | Jul high | Wet days/yr | Snow/yr | Best months |
|---|---|---|---|---|---|
| Carmel | 33°F | 83°F | 105 | 25.5 in | Apr, May |
| Evansville | 42°F | 89°F | 118 | 10.8 in | Apr, May |
| Fishers | 33°F | 83°F | 138 | 25.5 in | Apr, May |
| Fort Wayne | 33°F | 84°F | 135 | 33.6 in | May, Sep |
| Indianapolis | 36°F | 85°F | 128 | 25.5 in | Apr, May |
| South Bend | 31°F | 83°F | 147 | 64.5 in | May |