Ottumwa weather in April

In April, Ottumwa sees average daytime highs of 62°F and overnight lows near 42°F, with 4.3 in of precipitation across 11.6 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 57°F in the first days to 65°F by the end. The sky is clear or mostly clear about 26% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 42 min by month's end. Set against the rest of the year, April is Ottumwa's 11th-clearest and 1st-windiest month. For the whole year in context, see Ottumwa's year-round climate.

Daytime high
62°
7th warmest
Overnight low
42°
6th coldest
Precipitation
4.3 in
11.6 wet days
Daylight
13 h 06 min
5:37 AM – 6:43 PM
Cloud cover
64%
11th clearest
Wind
10 mph
1st windiest
Solar energy
5.02 kWh/m²
Travel score
4.9
out of 10

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

Density
575/km²
people per km²
Founded
1844

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 57°F in the first days to 65°F by the end.

A typical April day in Ottumwa reaches about 62°F in the afternoon and slips back to 42°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 47°F and 76°F. Set against its neighbours, April runs about 12°F warmer than March and about 10°F cooler than May.

20°40°60°80°151015202530
Avg high (°F)Avg low (°F)
15737
25737
35738
45838
55838
65939
75939
85939
96040
106040
116040
126141
136141
146241
156242
166242
176242
186343
196343
206344
216444
226444
236444
246445
256445
266546
276546
286546
296647
306647

How April really feels in Ottumwa

Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 6 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
6
wind chill below the day's low

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

Ottumwa weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan32° / 16°1.46.84.59.40.0
Feb36° / 20°1.874.310.40.0
Mar49° / 31°2.792.511.72.1
Apr62° / 42°4.311.60.813.14.9
May72° / 53°4.812.70.114.36.2
Jun81° / 63°5.011.8014.96.0
Jul85° / 67°3.39.6014.65.4
Aug83° / 64°3.59.4013.66.2
Sep76° / 56°3.68.1012.37.2
Oct64° / 44°2.87.90.210.95.9
Nov49° / 32°2.26.71.29.72.2
Dec37° / 22°1.86.33.59.10.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24258
34258
44258
54258
64258
74258
84258
94159
104159
114159
124060
134060
144060
153961
163961
173961
183961
193961
203961
213862
223862
233862
243763
253763
263862
273862
283862
293862
303862

Chance of precipitation in April

Any precipitationSnow

Ottumwa gets around 4.3 in of rain and snow over 11.6 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 39% and peaks near 42% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1343
2343
3353
4353
5353
6353
7363
8364
9374
10374
11384
12384
13394
14394
15394
16393
17403
18403
19403
20402
21402
22412
23412
24411
25411
26411
27411
28411
29411
30421

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
196400
296400
396400
496400
596400
696400
796400
895500
995500
1095500
1194600
1293610
1393610
1493610
1593610
1692710
1792710
1892710
1992710
2093610
2193610
2293610
2393610
2493610
2592710
2691720
2791720
2889731
2987841
3086941

Wind in April

Winds average 10 mph in April, the windiest month of the year.

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

051015151015202530
Wind speed (mph)Feels
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light 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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over April. Sunrise moves from 6:02 AM to 5:16 AM, and sunset from 6:27 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:026:27
212.56:006:28
312.55:596:29
412.55:576:30
512.65:556:31
612.65:546:32
712.75:526:33
812.75:506:34
912.85:486:35
1012.85:476:36
1112.95:456:37
1212.95:446:38
1313.05:426:39
1413.05:406:41
1513.05:396:42
1613.15:376:43
1713.15:356:44
1813.25:346:45
1913.25:326:46
2013.35:316:47
2113.35:296:48
2213.45:286:49
2313.45:266:50
2413.45:256:51
2513.55:236:52
2613.55:226:53
2713.65:206:55
2813.65:196:56
2913.75:186:57
3013.75:166:58

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.02 kWh/m².

For context, solar energy here swings from a low near 1.82 kWh/m² to a high of 6.44 kWh/m² in July across the year — April's 5.02 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.9Bright
94.9Bright
104.9Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.3Bright
Planning a trip in April

Is April a good time to visit Ottumwa?

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

4.9
Sightseeing
7th-best month of the year
1.1
Beach & pool
7th-best month of the year

April is a reasonable time to visit Ottumwa for sightseeing.

What to pack for Ottumwa in April

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

In April, Ottumwa sees daytime highs around 62°F and nights near 42°F. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

UV index in Ottumwa in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ottumwa peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 20UV 9Dec 19UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar4Moderate
Apr6High
May7Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Ottumwa in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Ottumwa is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (October, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodJul 1816 µg/m³Oct 217 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb14Moderate
Mar13Moderate
Apr11Good
May12Moderate
Jun13Moderate
Jul17Moderate
Aug14Moderate
Sep12Good
Oct7Good
Nov8Good
Dec10Good
Location & terrain

Where is Ottumwa?

Ottumwa sits at 41.0°N, 92.4°W, 673 ft above sea level, in United States. The nearest listed city is Newton, 57 mi away.

Topography around Ottumwa

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

Within 2 miles, the terrain around Ottumwa has only modest variations in elevation — a maximum elevation change of 249 ft around an average of 715 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 322 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 574 ft.

The land around Ottumwa is covered by trees (45%), artificial surfaces (25%) and grassland (20%) within 2 miles, cropland (40%), trees (33%) and grassland (24%) within 10 miles, and cropland (52%), grassland (25%) and trees (22%) within 50 miles.

2 miles
249 ft
10 miles
322 ft
50 miles
574 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Newton 57 mi · Kirksville 58 mi · Coralville 63 mi · Iowa City 63 mi · Indianola 64 mi · North Liberty 66 mi · Burlington 70 mi · Altoona 70 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 Ottumwa (41.02°, -92.4113°, elevation 673 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).