Indianapolis, IN weather in July
Indianapolis is warm and often humid in July, with frequent rain: highs average 85°F and nights drop to about 66°F. Rain falls on about 10 days. This is the peak of the warm season in Indianapolis.
- Normal high
- 85°F
- Normal low
- 66°F
- Wet days
- 10
- 4.4 in total
- Muggy days
- 17
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 85°F | 85°F |
| Normal low | 66°F | 66°F |
| Chance of a wet day | 36% | 31% |
| Sunrise / sunset | 6:20 am / 9:16 pm | 6:42 am / 8:59 pm |
| Daylight | 14.9 h | 14.3 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical July day
- 6 am68°Fdew point 64°F
- 9 am75°Fdew point 65°F
- Noon81°Fdew point 65°F
- 3 pm83°Fdew point 65°F
- 6 pm82°Fdew point 65°F
- 9 pm76°Fdew point 65°F
NOAA hourly normals (local standard time) from Indianapolis (9 mi away); average wind 8 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F3 of 31
- Hot dayshigh 90°F or more7 of 31
- Muggy daysdaily mean dew point 65°F or more17 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 4.4 in; a dry July brings about 2.7 in and a wet one about 6.0 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How July varies from year to year
- Warmest July, 1991-20202012: average high 96°F
- Coolest July2009: average high 79°F
- Wettest July2015: 13.1 in
- Driest July2011: 0.5 in
- Highest reading105°F (July 7, 2012)
- Lowest reading48°F (July 6, 2001)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 82°F | 85°F | 84°F |
| Normal low | 63°F | 66°F | 65°F |
| Wet days | 12 | 10 | 8 |
| Comfortable days | 7 | 3 | 4 |
| Daylight | 14.9 h | 14.7 h | 13.7 h |
Highs change by +3°F from June and -1°F into August.
How Indianapolis ranks in July
- Normal high229th warmest of 378 cities; 2nd of 6 in Indiana
- Wet days237th driest of 378
- Comfortable days144th most of 340
What to pack for Indianapolis in July
- Light, breathable clothing – highs near 85°F and about 17 muggy days
- A rain jacket or umbrella – rain on about 10 days
- Sunglasses and sunscreen – about 14.7 hours of daylight and highs near 85°F
Heating and cooling
July has 1 heating degree days and 336 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How hot is Indianapolis in July?
The normal high is 85°F and the normal low is 66°F. From 1991 to 2020 the hottest July reading was 105°F (most recently on July 7, 2012).
Does it rain a lot in Indianapolis in July?
About 10 days in July have at least 0.01 in of precipitation, and the normal total is 4.4 in. The wettest July in 1991-2020 was in 2015 (13.1 in); the driest was in 2011 (0.5 in).
Is July a good time to visit Indianapolis?
July ranks 7th of 12 months on our comfort score for Indianapolis (53 out of 100). It has about 3 comfortable days and about 7 days at 90°F or hotter. The best months are April and May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Indianapolis (USW00093819), 8.6 mi SW of the city center, 790 ft (72 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Indianapolis International Airport (724380-93819), 8.1 mi WSW of the city center, 792 ft (74 ft higher than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).