June weather forecastOnslow, IA
June
Weather in June
The first month of the summer, June, is a moderately hot month in Onslow, Iowa, with an average temperature fluctuating between 60.4°F (15.8°C) and 77°F (25°C).Temperature
The start of June brings a subtle shift in the average high-temperature, edging up from May's agreeable 68.4°F (20.2°C) to a warm 77°F (25°C). An average low-temperature of 60.4°F (15.8°C) is recorded in the month of June in Onslow.Humidity
The average relative humidity in June is 83%.Rainfall
In Onslow, Iowa, in June, during 17.3 rainfall days, 3.78" (96mm) of precipitation is typically accumulated. In Onslow, during the entire year, the rain falls for 142.5 days and collects up to 28.27" (718mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
June has the longest days of the year, with an average of 15h and 12min of daylight.On the first day of June in Onslow, sunrise is at 5:30 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:44 pm CDT.
Sunshine
In June, the average sunshine in Onslow is 9.6h.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index in Onslow. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 6 in June interprets into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Onslow, IA
- Average high temperature in June: 77°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in June: 60.4°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in June
Onslow, IA
- Average pressure in June: 29.9"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in June
Onslow, IA
- Average wind speed in June: 7.8mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in June
Onslow, IA
- Average humidity in June: 83%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in June
Onslow, IA
- Average rainfall in June: 3.78"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in June
Onslow, IA
- Average rainfall days in June: 17.3 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in June
Onslow, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Onslow, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (12.1 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
Onslow, 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 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in June
Onslow, IA
- Average sunshine days in June: 10.5 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in June
Onslow, IA
- Average UV index in June: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in June
Onslow, IA
- Average cloud cover in June: 35
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in June
Onslow, IA
- Average visibility in June: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).





