Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
Iona in June experiences an increase in the average high-temperature, moving from May's refreshing 67.8°F (19.9°C) to a moderately hot 79.7°F (26.5°C). Iona observes an average nighttime low-temperature of 60.4°F (15.8°C) during the month of June.Humidity
In Iona, the average relative humidity in June is 67%.Rainfall
The month with the most rainfall is June, when the rain falls for 14.6 days and typically aggregates up to 3.03" (77mm) 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 24min of daylight.On the first day of June in Iona, sunrise is at 5:58 am and sunset at 9:12 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 9:22 pm CDT.
Sunshine
In June, the average sunshine is 10.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in June leads to these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What are the temperatures in Iona in June?
What is the average humidity in June in Iona?
What is the wettest month in Iona?
How many days does it rain in June in Iona?
When it does not snow in Iona?
When are the longest days in Iona?
What is the average length of the day in June in Iona?
When is the sunrise / sunset in June in Iona?
How long on average sun shines in June in Iona?
What are the months with the highest UV index in Iona?
How high is the UV index in June in Iona?
Average temperature in June
Iona, SD
- Average high temperature in June: 79.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in June: 60.4°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in June
Iona, SD
- Average pressure in June: 29.84"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in June
Iona, SD
- Average wind speed in June: 9.8mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).
Average humidity in June
Iona, SD
- Average humidity in June: 67%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is September (58%).
Average rainfall in June
Iona, SD
- Average rainfall in June: 3.03"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is November (0.55").
Average rainfall days in June
Iona, SD
- Average rainfall days in June: 14.6 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in June
Iona, SD
- Average snowfall in June: 0"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Iona, SD
- Average snowfall days in June: 0 days
The months with the highest number of snowfall days are January and February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Iona, SD
- Average daylight in June: 15h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in June: 10h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in June
Iona, SD
- Average sunshine days in June: 12.4 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in June
Iona, SD
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in June
Iona, SD
- Average cloud cover in June: 27
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in June
Iona, SD
- Average visibility in June: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Iona, South Dakota, USA
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