June weather forecastIowa City, IA

June
Weather in June
Summer introduces itself gently in June. Temperatures remain comfortable, and the city enjoys an ample amount of daylight, reaching up to 15.2 hours per day. Though rainfall is still considerable, it lessens slightly, allowing more frequent sunny spells. The city pulsates with life as outdoor activities pick up in full swing.Temperature
Iowa City in June sees a temperature change, with average high-temperatures moving from a pleasant 69.8°F (21°C) in May to a moderately hot 79.2°F (26.2°C). Iowa City's temperature lowers to a mean of 62.1°F (16.7°C) during the nights in June.Humidity
In June, the average relative humidity is 82%.Rainfall
In Iowa City, in June, it is raining for 17.7 days, with typically 3.9" (99mm) of accumulated precipitation. In Iowa City, during the entire year, the rain falls for 140.4 days and collects up to 29.57" (751mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The month with the longest days is June, with an average of 15h and 12min of daylight.On the first day of June, sunrise is at 5:33 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:44 pm CDT.
Sunshine
In Iowa City, the average sunshine in June is 9.7h.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In June, the maximum UV index of 6 suggests these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Iowa City, IA
- Average high temperature in June: 79.2°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in June: 62.1°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in June
Iowa City, IA
- Average pressure in June: 29.9"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in June
Iowa City, IA
- Average wind speed in June: 7.9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in June
Iowa City, IA
- Average humidity in June: 82%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in June
Iowa City, IA
- Average rainfall in June: 3.9"
The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and February (1.34").
Average rainfall days in June
Iowa City, IA
- Average rainfall days in June: 17.7 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5 days).
Average snowfall in June
Iowa City, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Iowa City, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Iowa City, IA
- Average daylight in June: 15h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in June: 9h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in June
Iowa City, IA
- Average sunshine days in June: 10.1 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10 days).
Average UV index in June
Iowa City, IA
- Average UV index in June: 6
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in June
Iowa City, IA
- Average cloud cover in June: 33
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in June
Iowa City, IA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





