Peoria, IL weather in July
July in Peoria: warm and often humid, with some rain. Highs 86°F, lows 66°F, about 9 days with rain. This is the peak of the warm season in Peoria.
- Normal high
- 86°F
- Normal low
- 66°F
- Wet days
- 9
- 3.5 in total
- Muggy days
- 17
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 86°F | 86°F |
| Normal low | 66°F | 66°F |
| Chance of a wet day | 31% | 28% |
| Sunrise / sunset | 5:31 am / 8:33 pm | 5:54 am / 8:15 pm |
| Daylight | 15.0 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 (Central Time).
A typical July day
- 6 am69°Fdew point 65°F
- 9 am77°Fdew point 66°F
- Noon82°Fdew point 66°F
- 3 pm84°Fdew point 65°F
- 6 pm81°Fdew point 66°F
- 9 pm74°Fdew point 66°F
NOAA hourly normals (local standard time) from Peoria Gtr Peoria Airport (5 mi away); average wind 6 mph; clear or few clouds in 63% of daytime hours, mostly cloudy or overcast in 24%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F3 of 31
- Hot dayshigh 90°F or more9 of 31
- Muggy daysdaily mean dew point 65°F or more17 of 31
- Wet daysat least 0.01 in of rain or melted snow9 of 31
- Notable rainat least 0.10 in5 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 3.5 in; a dry July brings about 1.7 in and a wet one about 4.5 in (25th and 75th percentiles). About 2 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 94°F
- Coolest July2009: average high 79°F
- Wettest July1993: 10.2 in
- Driest July1991: 0.3 in
- Highest reading104°F (July 23, 2012)
- Lowest reading50°F (July 5, 1997)
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 | 83°F | 86°F | 85°F |
| Normal low | 62°F | 66°F | 64°F |
| Wet days | 11 | 9 | 8 |
| Comfortable days | 7 | 3 | 5 |
| Daylight | 15.0 h | 14.8 h | 13.8 h |
Highs change by +3°F from June and -1°F into August.
How Peoria ranks in July
- Normal high209th warmest of 378 cities; 2nd of 8 in Illinois
- Wet days160th driest of 378
- Comfortable days150th most of 340
What to pack for Peoria in July
- Light, breathable clothing – highs near 86°F and about 17 muggy days
- A rain jacket or umbrella – rain on about 9 days
- Sunglasses and sunscreen – about 14.8 hours of daylight and highs near 86°F
Heating and cooling
July has 1 heating degree days and 351 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How hot is Peoria in July?
The normal high is 86°F and the normal low is 66°F. From 1991 to 2020 the hottest July reading was 104°F (most recently on July 23, 2012).
Does it rain a lot in Peoria in July?
About 9 days in July have at least 0.01 in of precipitation, and the normal total is 3.5 in. The wettest July in 1991-2020 was in 1993 (10.2 in); the driest was in 1991 (0.4 in).
Is July a good time to visit Peoria?
July ranks 7th of 12 months on our comfort score for Peoria (53 out of 100). It has about 3 comfortable days and about 9 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Peoria Gtr Peoria Airport (USW00014842), 5.3 mi WSW of the city center, 650 ft (148 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Greater Peoria Regional Airport (725320-14842), 5.3 mi WSW of the city center, 655 ft (153 ft higher than the city). Hourly observations, 1991-2020.