Ottumwa weather in June

In June, Ottumwa sees average daytime highs of 81°F and overnight lows near 63°F, with 5.0 in of rain across 11.8 wet days and about 14.9 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 78°F in the first days to 84°F by the end. The sky is clear or mostly clear about 34% of the time in June, and the air most often feels muggy.

Daylight stretches from about 14 h 42 min at the start of June to 14 h 54 min by month's end. Set against the rest of the year, June is Ottumwa's 5th-clearest and 10th-windiest month. For the whole year in context, see Ottumwa's year-round climate.

Daytime high
81°
3rd warmest
Overnight low
63°
10th coldest
Rainfall
5.0 in
11.8 wet days
Daylight
14 h 54 min
4:42 AM – 7:38 PM
Cloud cover
56%
5th clearest
Wind
8 mph
10th windiest
Solar energy
6.4 kWh/m²
Travel score
6.0
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 June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 78°F in the first days to 84°F by the end.

A typical June day in Ottumwa reaches about 81°F in the afternoon and slips back to 63°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 72°F and 90°F. Set against its neighbours, June runs about 9°F warmer than May and about 4°F cooler than July.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17759
27859
37860
47860
57961
67961
77961
88062
98062
108062
118163
128163
138163
148164
158264
168264
178264
188264
198265
208365
218365
228365
238365
248365
258365
268365
278365
288366
298466
308466

How June really feels in Ottumwa

Once humidity and wind are folded in, June 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

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

Ottumwa weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 1st-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 June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 17% of June, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34555
44654
54654
64654
74654
84654
94753
104852
114951
124852
134852
144852
154951
165050
175050
185248
195248
205347
215347
225446
235545
245545
255545
265644
275545
285644
295644
305743

Chance of precipitation in June

Any precipitation

Ottumwa gets around 5.0 in of rain over 11.8 wet days in June, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
142
242
342
442
542
642
742
841
941
1041
1140
1240
1340
1440
1540
1640
1740
1839
1939
2038
2138
2237
2337
2437
2536
2636
2736
2835
2935
3034

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the muggy band about 27% of days. Sticky, muggy-or-worse air turns up on roughly 35% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1412121161
2402121171
3382121182
4362121192
5352121202
6332221213
7312222223
8302222233
9282223244
10262223254
11242124265
12232125265
13212125276
14202026286
15182026287
16172027298
17161927308
18151927309
19141927319
201319273110
211319273110
221219273111
231219263112
241120263212
251020253213
261020253114
271020243115
28920243115
29920243116
30920243017

Wind in June

Winds average 8 mph in June.

Across June, daily wind ranges from about 8 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 42 min at the start of June to 14 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 4:46 AM to 4:45 AM, and sunset from 7:29 PM to 7:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.74:467:29
214.74:457:30
314.84:457:30
414.84:447:31
514.84:447:32
614.84:437:32
714.84:437:33
814.84:437:34
914.94:437:34
1014.94:427:35
1114.94:427:35
1214.94:427:36
1314.94:427:37
1414.94:427:37
1514.94:427:37
1614.94:427:38
1714.94:427:38
1814.94:427:39
1914.94:427:39
2015.04:427:39
2115.04:427:40
2215.04:437:40
2315.04:437:40
2415.04:437:40
2515.04:437:40
2614.94:447:40
2714.94:447:41
2814.94:447:41
2914.94:457:41
3014.94:457:41

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 6.4 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 — June's 6.4 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.1Intense
46.1Intense
56.1Intense
66.2Intense
76.2Intense
86.2Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.6Intense
256.6Intense
266.6Intense
276.6Intense
286.6Intense
296.6Intense
306.6Intense
Planning a trip in June

Is June a good time to visit Ottumwa?

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

6.0
Sightseeing
4th-best month of the year
6.4
Beach & pool
3rd-best month of the year

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

What to pack for Ottumwa in June

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

In June, Ottumwa sees daytime highs around 81°F and nights near 63°F. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Ottumwa in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 10 (very high — sun protection essential). 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 June

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where June 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
June 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).