Marion County · Indiana
Indianapolis, IN weather averages
NOAA climate normals for 1991-2020, measured at Indianapolis Eagle Creek Ap, 18.4 km from the city centre — month by month temperature, rain and snow.
Quick answer
Indianapolis averages a daily high of 61.9°F and a daily low of 44.5°F across the year, with 40.79 inches of precipitation. July is the warmest month at 83.9°F and January the coldest at 21°F.
- Average annual high
- 61.9°FWarmest month July
- Average annual low
- 44.5°FColdest month January
- Precipitation per year
- 40.79 inWettest month May
- Snowfall per year
- —99.9 days at or below 32°F
Indianapolis weather month by month
Normal daily high and low, precipitation and snowfall for each month, 1991-2020.
| Month | High °F | Low °F | Precip in | Snow in | Range |
|---|---|---|---|---|---|
| January | 35.1 | 21 | 2.21 | — | 21 to 35.1 degrees |
| February | 40 | 24 | 2.13 | — | 24 to 40 degrees |
| March | 51.5 | 33.4 | 3.3 | — | 33.4 to 51.5 degrees |
| April | 62.7 | 43.6 | 3.9 | — | 43.6 to 62.7 degrees |
| May | 72.5 | 53 | 5.27 | — | 53 to 72.5 degrees |
| June | 81.3 | 63.4 | 4.39 | — | 63.4 to 81.3 degrees |
| July | 83.9 | 66.6 | 4.26 | — | 66.6 to 83.9 degrees |
| August | 83.2 | 65 | 3.19 | — | 65 to 83.2 degrees |
| September | 77.2 | 57.1 | 2.25 | — | 57.1 to 77.2 degrees |
| October | 64.4 | 45.2 | 3.11 | — | 45.2 to 64.4 degrees |
| November | 51.8 | 36.1 | 3.7 | — | 36.1 to 51.8 degrees |
| December | 38.5 | 24.9 | 3.08 | — | 24.9 to 38.5 degrees |
Source: NOAA NCEI, U.S. Climate Normals 1991-2020 — station USW00053842, Indianapolis Eagle Creek Ap · rates as published for 1991-2020 normals
How to read Indianapolis climate normals
What a climate normal is, and what it is not.
A normal is the average of thirty years of daily observations at one station — here Indianapolis Eagle Creek Ap, 18.4 km from the centre of Indianapolis. It describes a typical year, so any single year will run warmer, cooler, wetter or drier. Readings taken at an airport on the edge of town usually sit a degree or two below a dense downtown on summer nights. Indianapolis sees about 9.7 days a year at or above 90°F.
More Indianapolis data
Other Indianapolis datasets on this site.
- Indianapolis population and income
- Indianapolis sales tax rate
- Indianapolis property tax
- Indianapolis cost of living
- Indianapolis home values and rent
- Indianapolis crime rates
- Indianapolis public schools
- Indianapolis commute times
- Indianapolis jobs and wages
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