Clinton weather in July

In July, Clinton sees average daytime highs of 83°F and overnight lows near 66°F, with 3.8 in of rain across 10.2 wet days and about 14.7 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 83°F through the month. The sky is clear or mostly clear about 38% of the time in July, and the air most often feels muggy.

Daylight stretches from about 15 hours at the start of July to 14 h 18 min by month's end. Set against the rest of the year, July is Clinton's 3rd-clearest and 11th-windiest month. For the whole year in context, see Clinton's year-round climate.

Daytime high
83°
1st warmest
Overnight low
66°
12th coldest
Rainfall
3.8 in
10.2 wet days
Daylight
14 h 48 min
4:44 AM – 7:29 PM
Cloud cover
52%
3rd clearest
Wind
7 mph
11th windiest
Solar energy
6.34 kWh/m²
Travel score
5.9
out of 10

Clinton is city in, and the county seat of, Clinton County, Iowa, United States.

Density
265/km²
people per km²
Founded
1836

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 83°F through the month.

A typical July day in Clinton reaches about 83°F in the afternoon and slips back to 66°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 91°F. Set against its neighbours, July runs about 3°F warmer than June and about 2°F warmer than August.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18265
28265
38365
48365
58365
68365
78366
88366
98366
108366
118366
128366
138366
148366
158366
168366
178366
188366
198366
208366
218366
228366
238366
248366
258366
268366
278366
288365
298365
308365
318365

How July really feels in Clinton

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.

Clinton 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
Jan30° / 15°1.87.75.39.30.0
Feb34° / 19°1.96.54.310.30.0
Mar48° / 30°2.79.32.511.71.7
Apr60° / 41°4.311.80.913.14.6
May71° / 52°4.713014.36.1
Jun80° / 62°4.611.80156.2
Jul83° / 66°3.810.2014.75.9
Aug81° / 63°3.69.1013.76.7
Sep75° / 55°3.58.5012.37.1
Oct62° / 44°2.78.30.210.95.5
Nov47° / 32°2.57.71.49.61.7
Dec35° / 21°2.17.54.190.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35842
45842
55842
65842
75941
85941
95941
105941
115941
125941
135842
145842
155842
165842
175842
185842
195743
205743
215743
225743
235743
245743
255842
265842
275842
285842
295941
305941
315941

Chance of precipitation in July

Any precipitation

Clinton gets around 3.8 in of rain over 10.2 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 33% and peaks near 36% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
535
635
735
835
935
1034
1134
1234
1334
1434
1534
1634
1734
1833
1933
2033
2133
2232
2332
2432
2531
2631
2730
2830
2930
3029
3129

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 50% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
110212428160
210212428171
310212428171
49212428171
59212428181
68212428181
78202429181
88202429181
97192530181
107192530191
116182531191
126182531192
135172531192
145172531202
155172531202
165172531202
175172531203
185172530213
195162530213
205172529213
215172529223
225172528223
235172527223
245182627223
255192627213
265192626212
275202626202
286212626202
296212626192
306222626192
316222626182

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
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 15 hours at the start of July to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 4:34 AM to 4:57 AM, and sunset from 7:34 PM to 7:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.04:347:34
215.04:347:34
315.04:357:34
415.04:357:34
515.04:367:34
614.94:367:33
714.94:377:33
814.94:387:33
914.94:387:33
1014.94:397:32
1114.94:407:32
1214.84:407:31
1314.84:417:31
1414.84:427:30
1514.84:437:30
1614.84:447:29
1714.74:447:29
1814.74:457:28
1914.74:467:27
2014.74:477:27
2114.64:487:26
2214.64:497:25
2314.64:507:24
2414.54:507:23
2514.54:517:22
2614.54:527:22
2714.54:537:21
2814.44:547:20
2914.44:557:19
3014.44:567:18
3114.34:577:17

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.34 kWh/m².

For context, solar energy here swings from a low near 1.71 kWh/m² to a high of 6.36 kWh/m² in June across the year — July's 6.34 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
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in July

Is July a good time to visit Clinton?

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

5.9
Sightseeing
5th-best month of the year
7.0
Beach & pool
2nd-best month of the year

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

What to pack for Clinton in July

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

In July, Clinton sees daytime highs around 83°F and nights near 66°F. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Clinton in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Clinton peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 19UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul8Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec2Low

Air quality in Clinton 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 Clinton is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodJul 1915 µg/m³Oct 227 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar13Moderate
Apr11Good
May13Moderate
Jun13Moderate
Jul15Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov8Good
Dec9Good
Location & terrain

Where is Clinton?

Clinton sits at 41.8°N, 90.2°W, 587 ft above sea level, in United States. The nearest listed city is Sterling, 25 mi away.

Topography around Clinton

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

Within 2 miles, the terrain around Clinton has only modest variations in elevation — a maximum elevation change of 200 ft around an average of 620 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 367 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 817 ft.

The land around Clinton is covered by trees (32%), artificial surfaces (24%) and grassland (20%) within 2 miles, cropland (62%) within 10 miles, and cropland (73%) within 50 miles.

2 miles
200 ft
10 miles
367 ft
50 miles
817 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Sterling 25 mi · East Moline 27 mi · Bettendorf 28 mi · Moline 29 mi · Davenport 30 mi · Rock Island 30 mi · Dixon 37 mi · Freeport 43 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 Clinton (41.8445°, -90.1887°, elevation 587 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).