Sioux City weather in June

In June, Sioux City sees average daytime highs of 80°F and overnight lows near 61°F, with 4.9 in of rain across 11.8 wet days and about 15.1 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 77°F in the first days to 83°F by the end. The sky is clear or mostly clear about 37% of the time in June, and the air most often feels dry.

Daylight stretches from about 14 h 54 min at the start of June to 15 h 06 min by month's end. Set against the rest of the year, June is Sioux City's 5th-clearest and 10th-windiest month. For the whole year in context, see Sioux City's year-round climate.

Daytime high
80°
3rd warmest
Overnight low
61°
10th coldest
Rainfall
4.9 in
11.8 wet days
Daylight
15 h 06 min
4:53 AM – 7:59 PM
Cloud cover
53%
5th clearest
Wind
9 mph
10th windiest
Solar energy
6.5 kWh/m²
Travel score
6.3
out of 10

Sioux City is city in Woodbury and Plymouth counties in Iowa, United States.

Density
547/km²
people per km²
Founded
1854

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 77°F in the first days to 83°F by the end.

A typical June day in Sioux City reaches about 80°F in the afternoon and slips back to 61°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 71°F and 89°F. Set against its neighbours, June runs about 10°F warmer than May and about 4°F cooler than July.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
17657
27657
37758
47758
57858
67859
77859
87960
97960
107960
118060
128061
138061
148061
158162
168162
178162
188162
198163
208263
218263
228263
238263
248264
258264
268264
278364
288364
298364
308364

How June really feels in Sioux City

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.

Sioux City weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan29° / 13°0.94.74.39.20.0
Feb34° / 16°1.154.410.30.0
Mar47° / 27°2.273.211.61.6
Apr60° / 39°4.010.61.813.14.6
May71° / 51°4.912.60.114.46.2
Jun80° / 61°4.911.8015.16.3
Jul84° / 65°3.08.8014.85.8
Aug82° / 63°3.99.4013.76.6
Sep75° / 54°3.07.7012.37.4
Oct62° / 41°2.47.40.510.85.6
Nov46° / 28°1.65.42.59.61.5
Dec33° / 17°1.25.24.28.90.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 19% of June, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
25050
35149
45248
55248
65248
75248
85248
95347
105347
115347
125446
135446
145446
155545
165545
175644
185743
195842
205842
215941
226040
236040
246139
256139
266139
276139
286139
296139
306139

Chance of precipitation in June

Any precipitation

Sioux City gets around 4.9 in of rain over 11.8 wet days in June. 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.

0%10%20%30%40%50%151015202530
Rain chance (%)
142
242
341
441
541
640
740
840
940
1040
1139
1239
1339
1440
1540
1640
1740
1840
1940
2039
2139
2239
2338
2438
2537
2637
2736
2836
2935
3034

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 26% of days. Sticky, muggy-or-worse air turns up on roughly 26% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
151241870
249251980
347251990
4452620100
5422620110
6402721120
7382722131
8352822141
9332823151
10312824161
11292825172
12272825182
13252726192
14242726213
15222627223
16212627234
17202527244
18192427255
19182427265
20172327276
21172227287
22162227287
23152126298
24152126299
25152026309
261420253010
271419253111
281319253111
291319253112
301218253113

Wind in June

Winds average 9 mph in June.

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

051015151015202530
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
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 54 min at the start of June to 15 h 06 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 4:57 AM to 4:56 AM, and sunset from 7:49 PM to 8:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:577:49
214.94:567:50
314.94:567:51
414.94:557:52
515.04:557:52
615.04:557:53
715.04:547:54
815.04:547:54
915.04:547:55
1015.04:547:56
1115.04:537:56
1215.14:537:57
1315.14:537:57
1415.14:537:58
1515.14:537:58
1615.14:537:59
1715.14:537:59
1815.14:538:00
1915.14:538:00
2015.14:538:00
2115.14:538:00
2215.14:538:01
2315.14:548:01
2415.14:548:01
2515.14:548:01
2615.14:558:01
2715.14:558:01
2815.14:558:01
2915.14:568:01
3015.14:568:01

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 6.5 kWh/m².

For context, solar energy here swings from a low near 1.82 kWh/m² to a high of 6.66 kWh/m² in July across the year — June's 6.5 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.6Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
Planning a trip in June

Hazard calendar for Sioux City

In seasonPeak

In June, Sioux City sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Sioux City's rainy season runs April–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is June a good time to visit Sioux City?

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

6.3
Sightseeing
3rd-best month of the year
6.4
Beach & pool
3rd-best month of the year

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

What to pack for Sioux City in June

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

In June, Sioux City sees daytime highs around 80°F and nights near 61°F. Pack sun protection. Worth having: light clothes and rain gear. About 12 days see rain.

sun protectionlight clothesrain gear

UV index in Sioux City in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Sioux City peaks around June 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 19UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun9Very high
Jul8Very high
Aug7High
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Sioux City?

Sioux City sits at 42.5°N, 96.4°W, 1,201 ft above sea level, in United States. The nearest listed city is Norfolk, 62 mi away.

Topography around Sioux City

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

Within 2 miles, the terrain around Sioux City has only modest variations in elevation — a maximum elevation change of 282 ft around an average of 1,152 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 436 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 892 ft.

The land around Sioux City is covered by artificial surfaces (46%) and trees (30%) within 2 miles, cropland (52%) and grassland (23%) within 10 miles, and cropland (84%) within 50 miles.

2 miles
282 ft
10 miles
436 ft
50 miles
892 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Norfolk 62 mi · Fremont 74 mi · Sioux Falls 74 mi · Columbus 89 mi · Omaha 89 mi · Council Bluffs 90 mi · La Vista 93 mi · Papillion 95 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 Sioux City (42.5°, -96.4003°, elevation 1,201 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).