Climate averages 1991–2020
Indianapolis weather
in March.
A cool, wet month: the 9th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Indianapolis: daytime highs average 10.1°C and nights cool to about 0.4°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 97 mm of rain on roughly 11 days, which makes March a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 55 min on an average March day.
The nearest other city in this atlas is Carmel (24 km away). In March its highs average 9.8°C, about as warm as Indianapolis, with 96 mm of rain.
Among the 498 cities listed in the United States, Indianapolis ranks joint 357th of 498 for the warmest March highs and joint 335th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; Indianapolis is 4.8°C cooler than that mean.
From March to April, average highs rise by 6.7°C to 16.8°C, and monthly rainfall rises from 97 mm to 120 mm.
The annual picture
March in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Indianapolis climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.9°C-6.0°C | -6.0°C | 80 | 9.2 | 9.710 h |
| February | 4.4°C-4.5°C | -4.5°C | 66 | 8.6 | 10.711 h |
| March, selected | 10.1°C0.4°C | 0.4°C | 97 | 11.1 | 11.912 h |
| April | 16.8°C6.5°C | 6.5°C | 120 | 12.0 | 13.213 h |
| May | 22.0°C12.4°C | 12.4°C | 122 | 13.4 | 14.314 h |
| June | 26.7°C17.5°C | 17.5°C | 107 | 11.8 | 14.915 h |
| July | 28.5°C19.5°C | 19.5°C | 90 | 11.5 | 14.715 h |
| August | 28.0°C18.9°C | 18.9°C | 72 | 8.9 | 13.714 h |
| September | 24.6°C15.2°C | 15.2°C | 72 | 7.6 | 12.512 h |
| October | 17.7°C8.9°C | 8.9°C | 83 | 8.4 | 11.211 h |
| November | 10.2°C2.5°C | 2.5°C | 87 | 8.8 | 10.010 h |
| December | 4.2°C-2.9°C | -2.9°C | 78 | 9.9 | 9.49 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Carmel in MarchUnited States · 24 kmHigh 9.8°C · Low -0.1°C · 96 mm rain
- Fishers in MarchUnited States · 24 kmHigh 9.9°C · Low -0.1°C · 96 mm rain
- Bloomington (Indiana), United States in MarchUnited States · 74 kmHigh 11.3°C · Low 1.4°C · 101 mm rain
- Muncie in MarchUnited States · 81 kmHigh 9.3°C · Low -0.7°C · 91 mm rain
- Lafayette (Indiana), United States in MarchUnited States · 94 kmHigh 9.7°C · Low -0.4°C · 84 mm rain
- Cincinnati in MarchUnited States · 158 kmHigh 11.2°C · Low 1.0°C · 105 mm rain
- Dayton in MarchUnited States · 168 kmHigh 10.0°C · Low 0.4°C · 100 mm rain
- Louisville in MarchUnited States · 172 kmHigh 13.0°C · Low 2.7°C · 114 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Indianapolis) is explained once on the Indianapolis year overview and on the Sources, method and limits page.