June weather forecastSully, IA
June
Weather in June
June, the first month of the summer in Sully, is a warm month, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 62.4°F (16.9°C).Temperature
The start of June brings a rise in the average high-temperature, moving from a pleasant 69.3°F (20.7°C) in May to a warm 79.3°F (26.3°C). June nights in Sully are marked by an average temperature drop to a refreshing 62.4°F (16.9°C).Humidity
The average relative humidity in June in Sully is 82%.Rainfall
In Sully, in June, during 14.5 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, there are 106.7 rainfall days, and 11.77" (299mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Sully.Daylight
The month with the longest days is June, with an average of 15h and 6min of daylight.On the first day of June, sunrise is at 5:39 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:49 pm CDT.
Sunshine
The average sunshine in June is 9.7h.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 6 in June transforms into the following instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Sully, IA
- Average high temperature in June: 79.3°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 (27.1°F).
- Average low temperature in June: 62.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in June
Sully, IA
- Average pressure in June: 29.89"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in June
Sully, IA
- Average wind speed in June: 8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in June
Sully, IA
- Average humidity in June: 82%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Sully, IA
- Average rainfall in June: 1.85"
The wettest month (with the highest rainfall) is May (2.13").
The driest months (with the least rainfall) are January, February and December (0.39").
Average rainfall days in June
Sully, IA
- Average rainfall days in June: 14.5 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in June
Sully, IA
- Average snowfall in June: 0"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Sully, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Sully, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in June
Sully, IA
- Average sunshine days in June: 12.2 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in June
Sully, 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
Sully, IA
- Average cloud cover in June: 35
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).
Average visibility in June
Sully, IA
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





