Coralville weather in October

In October, Coralville sees average daytime highs of 62°F and overnight lows near 43°F, with 2.9 in of precipitation across 8.6 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 68°F in the first days to 56°F by the end. The sky is clear or mostly clear about 40% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 12 min by month's end. Set against the rest of the year, October is Coralville's 4th-clearest and 6th-windiest month. For the whole year in context, see Coralville's year-round climate.

Daytime high
62°
6th warmest
Overnight low
43°
7th coldest
Precipitation
2.9 in
8.6 wet days
Daylight
10 h 54 min
6:26 AM – 5:17 PM
Cloud cover
54%
4th clearest
Wind
10 mph
6th windiest
Solar energy
3.16 kWh/m²
Travel score
5.5
out of 10

Coralville is city in Johnson County, Iowa, United States.

Density
661/km²
people per km²
Founded
1873

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 68°F in the first days to 56°F by the end.

A typical October day in Coralville reaches about 62°F in the afternoon and slips back to 43°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 49°F and 75°F. Set against its neighbours, October runs about 13°F cooler than September and about 15°F warmer than November.

20°40°60°80°151015202531
Avg high (°F)Avg low (°F)
16949
26948
36848
46847
56747
66747
76646
86646
96545
106545
116445
126444
136444
146344
156243
166243
176242
186142
196042
206041
216041
225941
235840
245840
255839
265739
275639
285638
295638
305537
315537

How October really feels in Coralville

Once humidity and wind are folded in, October averages 0 days that feel above 90°F and 4 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
4
wind chill below the day's low

The story in October is cold — wind chill drags the overnight "feels like" below the raw low.

Coralville weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan29° / 14°1.57.15.39.30.0
Feb33° / 18°1.86.44.210.30.0
Mar47° / 29°2.79.22.811.71.6
Apr60° / 41°4.411.80.813.14.5
May71° / 52°4.913.4014.36.0
Jun80° / 62°5.111.70156.3
Jul83° / 65°3.79.6014.76.1
Aug81° / 63°3.89.1013.76.8
Sep75° / 55°3.98.2012.37.2
Oct62° / 43°2.98.60.210.95.5
Nov47° / 31°2.37.71.59.61.7
Dec34° / 20°1.96.94.590.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 11% of October, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35842
45743
55743
65644
75644
85545
95446
105446
115446
125248
135248
145248
155149
165050
174951
184852
194753
204753
214753
224654
234555
244555
254456
264456
274456
284456
294456
304456
314456

Chance of precipitation in October

Any precipitationSnow

Coralville gets around 2.9 in of rain and snow over 8.6 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 27% and peaks near 28% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1270
2270
3260
4260
5260
6260
7270
8270
9270
10270
11270
12270
13270
14270
15280
16280
17281
18281
19281
20281
21281
22281
23281
24281
25282
26282
27282
28282
29272
30272
31262

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1781273
2801163
3801163
4811063
5831052
684952
784952
886842
986842
1088732
1188732
1288732
1391621
1491621
1591621
1691621
1792521
1892521
1992521
2092521
2193520
2294420
2394420
2494420
2594420
2694420
2794420
2894420
2996310
3096310
3196310

Wind in October

Winds average 10 mph in October.

Across October, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
1610light breeze
1710light breeze
1810light breeze
1910light breeze
2010light breeze
2110light breeze
2210light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over October. Sunrise moves from 6:09 AM to 6:44 AM, and sunset from 5:42 PM to 4:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:095:42
211.56:105:40
311.56:115:39
411.46:125:37
511.46:135:35
611.36:145:33
711.36:155:32
811.26:165:30
911.26:185:28
1011.16:195:27
1111.16:205:25
1211.06:215:23
1311.06:225:22
1410.96:235:20
1510.96:245:19
1610.96:265:17
1710.86:275:16
1810.86:285:14
1910.76:295:12
2010.76:305:11
2110.66:325:10
2210.66:335:08
2310.56:345:07
2410.56:355:05
2510.56:365:04
2610.46:385:02
2710.46:395:01
2810.36:405:00
2910.36:414:59
3010.26:434:57
3110.26:444:56

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.16 kWh/m².

For context, solar energy here swings from a low near 1.74 kWh/m² to a high of 6.39 kWh/m² in July across the year — October's 3.16 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.8Moderate
33.8Moderate
43.8Moderate
53.7Moderate
63.7Moderate
73.6Moderate
83.6Moderate
93.5Moderate
103.5Moderate
113.4Moderate
123.4Moderate
133.3Moderate
143.3Moderate
153.2Moderate
163.2Moderate
173.1Moderate
183.1Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.7Moderate
272.7Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.5Moderate
Planning a trip in October

Is October a good time to visit Coralville?

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

5.5
Sightseeing
6th-best month of the year
1.5
Beach & pool
6th-best month of the year

October is a reasonable time to visit Coralville for sightseeing.

What to pack for Coralville in October

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

In October, Coralville sees daytime highs around 62°F and nights near 43°F. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Coralville in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Coralville 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
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Coralville in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Coralville is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodJul 1916 µg/m³Oct 218 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb14Moderate
Mar14Moderate
Apr11Good
May13Moderate
Jun13Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec10Good
Location & terrain

Where is Coralville?

Coralville sits at 41.7°N, 91.6°W, 682 ft above sea level, in United States. The nearest listed city is Iowa City, 3.1 mi away.

Topography around Coralville

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

Within 2 miles, the terrain around Coralville has only modest variations in elevation — a maximum elevation change of 302 ft around an average of 722 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 384 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 640 ft.

The land around Coralville is covered by trees (39%), artificial surfaces (28%) and grassland (27%) within 2 miles, cropland (51%) and trees (22%) within 10 miles, and cropland (73%) within 50 miles.

2 miles
302 ft
10 miles
384 ft
50 miles
640 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Iowa City 3.1 mi · North Liberty 5.0 mi · Cedar Rapids 23 mi · Marion 25 mi · Muscatine 33 mi · Davenport 53 mi · Rock Island 53 mi · Bettendorf 56 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 Coralville (41.6764°, -91.5804°, elevation 682 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).