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
June in Keystone brings a rise in the average high-temperature, transitioning from May's refreshing 61°F (16.1°C) to a moderately hot 74.1°F (23.4°C). Keystone experiences an average low-temperature reading of 53.2°F (11.8°C) throughout June.Humidity
In June, the average relative humidity in Keystone is 60%.Rainfall
June is the month with the most rainfall. Rain falls for 18 days and accumulates 3.19" (81mm) of precipitation.Snowfall
In Keystone, South Dakota, snow does not fall in June through August.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 Keystone, South Dakota, sunrise is at 5:13 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:14 am and sunset at 8:40 pm MDT.
Sunshine
In June, the average sunshine in Keystone is 11.3h.UV index
The average daily maximum UV index in June is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 5 during June translates into the following directions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
What are the temperatures in Keystone in June?
What is the average humidity in June in Keystone?
What is the rainiest month in Keystone?
How many days does it rain in June in Keystone?
When it does not snow in Keystone?
Does it snow in Keystone in June?
When are the longest days in Keystone?
What is the average length of the day in June in Keystone?
When are sunrise and sunset in June in Keystone?
How long on average sun shines in June in Keystone?
What is the UV index intensity in June in Keystone?
Average temperature in June
Keystone, SD
- Average high temperature in June: 74.1°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (29.8°F).
- Average low temperature in June: 53.2°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure in June
Keystone, SD
- Average pressure in June: 29.84"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in June
Keystone, SD
- Average wind speed in June: 8.3mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in June
Keystone, SD
- Average humidity in June: 60%
The months with the highest relative humidity are January and February (77%).
The months with the lowest relative humidity are August and September (52%).
Average rainfall in June
Keystone, SD
- Average rainfall in June: 3.19"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in June
Keystone, SD
- Average rainfall days in June: 18 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (4.5 days).
Average snowfall in June
Keystone, SD
- Average snowfall in June: 0"
The month with the highest snowfall is April (7.24").
The months with the least snowfall are June, July and August (0").
Average snowfall days in June
Keystone, SD
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in June /
Average sunshine in June
Keystone, 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: 11h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in June
Keystone, SD
- Average sunshine days in June: 7.9 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (7.8 days).
Average UV index in June
Keystone, SD
- Average UV index in June: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in June
Keystone, SD
- Average cloud cover in June: 23
The month with the most cloud cover is April (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in June
Keystone, SD
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Keystone, South Dakota, USA
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