June weather forecastRiver Junction, IA
June
Weather in June
The first month of the summer, June, is a moderately hot month in River Junction, Iowa, with an average temperature fluctuating between 62.1°F (16.7°C) and 79.2°F (26.2°C).Temperature
River Junction in June shows a temperature shift, moving from an average high of an agreeable 69.8°F (21°C) in May to a moderately hot 79.2°F (26.2°C). An average low-temperature of 62.1°F (16.7°C) is observed in River Junction, Iowa, during the June nights.Humidity
In River Junction, the average relative humidity in June is 82%.Rainfall
In River Junction, in June, it is raining for 17.7 days, with typically 3.9" (99mm) of accumulated precipitation. In River Junction, Iowa, 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 6min of daylight.On the first day of the month, sunrise is at 5:34 am and sunset at 8:33 pm. On the last day of June, sunrise is at 5:35 am and sunset at 8:43 pm CDT.
Sunshine
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 average individuals.Note: A daily high UV index of 6 in June leads to these guidelines:
Ward off overexposure. Defence against solar harm is crucial. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
River Junction, 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
River Junction, 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
River Junction, 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
River Junction, 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
River Junction, 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
River Junction, 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
River Junction, 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
River Junction, 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
River Junction, IA
- Average daylight in June: 15h and 6min
The month with the longest days is June (Average daylight: 15h and 6min).
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
River Junction, 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
River Junction, 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
River Junction, 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
River Junction, 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).





