Champaign weather in July

In July, Champaign sees average daytime highs of 84°F and overnight lows near 67°F, with 3.6 in of rain across 10.4 wet days and about 14.6 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 84°F through the month. The sky is clear or mostly clear about 39% of the time in July, and the air most often feels muggy.

Daylight stretches from about 14 h 48 min at the start of July to 14 h 12 min by month's end. Set against the rest of the year, July is Champaign's 3rd-clearest and 11th-windiest month. For the whole year in context, see Champaign's year-round climate.

Daytime high
84°
1st warmest
Overnight low
67°
12th coldest
Rainfall
3.6 in
10.4 wet days
Daylight
14 h 36 min
4:41 AM – 7:16 PM
Cloud cover
53%
3rd clearest
Wind
7 mph
11th windiest
Solar energy
6.41 kWh/m²
Travel score
5.6
out of 10

Champaign is city in Champaign County, Illinois, United States.

Density
1,462/km²
people per km²
Founded
1855

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 84°F through the month.

A typical July day in Champaign reaches about 84°F in the afternoon and slips back to 67°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 77°F and 91°F. Set against its neighbours, July runs about 3°F warmer than June and on par with August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18366
28366
38366
48366
58466
68467
78467
88467
98467
108467
118467
128467
138467
148467
158467
168467
178467
188467
198467
208467
218467
228467
238467
248467
258467
268467
278466
288366
298366
308366
318366

How July really feels in Champaign

Once humidity and wind are folded in, July averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Champaign weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan35° / 21°2.78.64.49.50.0
Feb40° / 24°2.37.43.810.40.2
Mar51° / 33°3.310.31.611.72.5
Apr64° / 44°4.511.80.3135.2
May73° / 54°4.713.2014.26.2
Jun81° / 64°4.111.4014.86.0
Jul84° / 67°3.610.4014.65.6
Aug83° / 65°2.98.7013.66.2
Sep78° / 57°3.07.3012.37.3
Oct65° / 46°3.38.50.110.96.1
Nov51° / 35°3.38.70.89.82.7
Dec40° / 26°2.58.93.19.20.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 18% of July, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35644
45644
55644
65743
75743
85644
95743
105644
115743
125644
135545
145545
155545
165446
175446
185446
195446
205446
215446
225446
235545
245644
255743
265743
275842
285842
295941
305941
316040

Chance of precipitation in July

Any precipitation

Champaign gets around 3.6 in of rain over 10.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
335
435
534
634
734
834
934
1034
1134
1234
1334
1435
1535
1635
1735
1835
1935
2035
2134
2234
2334
2433
2533
2632
2731
2830
2930
3029
3128

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the muggy band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
19182133180
29182133190
38182132200
48182232200
58172232210
68172231220
78162231221
87162331231
97152330231
107152330241
116142330251
126142330261
136142330271
146142229272
155142229282
165142228282
175142228292
185142228292
195142227292
205142227292
215142227292
225142227302
236142226293
246152326283
256152326282
266152426272
276162425262
287162525252
297162625242
307162625242
317162726232

Wind in July

Winds average 7 mph in July.

Across July, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 48 min at the start of July to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over July. Sunrise moves from 4:32 AM to 4:54 AM, and sunset from 7:21 PM to 7:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:327:21
214.84:327:21
314.84:337:21
414.84:337:21
514.84:347:20
614.84:347:20
714.84:357:20
814.74:357:20
914.74:367:19
1014.74:377:19
1114.74:377:19
1214.74:387:18
1314.74:397:18
1414.64:397:17
1514.64:407:17
1614.64:417:16
1714.64:427:16
1814.54:427:15
1914.54:437:15
2014.54:447:14
2114.54:457:13
2214.44:467:12
2314.44:477:12
2414.44:477:11
2514.44:487:10
2614.34:497:09
2714.34:507:08
2814.34:517:07
2914.24:527:06
3014.24:537:05
3114.24:547:04

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.41 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.77 kWh/m² to a high of 6.41 kWh/m² in June across the year — July's 6.41 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.5Intense
166.5Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in July

Is July a good time to visit Champaign?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.6
Sightseeing
6th-best month of the year
7.0
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Champaign for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Champaign in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Champaign sees daytime highs around 84°F and nights near 67°F. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Champaign in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Champaign peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Champaign in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Champaign is worst in July — around 16 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodJul 1616 µg/m³Oct 218 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar13Moderate
Apr11Good
May14Moderate
Jun15Moderate
Jul16Moderate
Aug14Moderate
Sep11Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Champaign?

Champaign sits at 40.1°N, 88.2°W, 738 ft above sea level, in United States. The nearest listed city is Urbana, 1.9 mi away.

Topography around Champaign

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Champaign.

Within 2 miles, the terrain around Champaign has only modest variations in elevation — a maximum elevation change of 115 ft around an average of 751 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 200 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 495 ft.

The land around Champaign is covered by artificial surfaces (47%) and trees (37%) within 2 miles, cropland (79%) within 10 miles, and cropland (86%) within 50 miles.

2 miles
115 ft
10 miles
200 ft
50 miles
495 ft
treesgrasslandcroplandartificial surfacesbare terrain
July weather nearby: Urbana 1.9 mi · Danville 32 mi · Decatur 42 mi · Charleston 43 mi · Mattoon 44 mi · Bloomington 47 mi · Normal 48 mi · Terre Haute 63 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Champaign (40.1164°, -88.2434°, elevation 738 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).