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
The arrival of June brings an increase in high-temperatures, moving from a pleasant 69.4°F (20.8°C) in May to a moderately hot 79.9°F (26.6°C). During the month of June, the nighttime temperature falls to an average of 62.2°F (16.8°C).Humidity
The average relative humidity in June is 75%.Rainfall
The wettest months are May and June, with an average 3.03" (77mm) of rainfall.Snowfall
In Jefferson, snow does not fall in June through September.Daylight
June has the longest days of the year, with an average of 15h and 18min of daylight.On the first day of the month, sunrise is at 5:50 am and sunset at 8:57 pm. On the last day of June, sunrise is at 5:52 am and sunset at 9:07 pm CDT.
Sunshine
In Jefferson, the average sunshine in June is 10.1h.UV index
The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: During June, 6 as the daily maximum UV index converts into the following advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in June?
What is the average humidity in June?
What is the rainiest month?
How much does it rain in June?
When it does not snow?
Does it snow in Jefferson in June?
When are the longest days?
What is the average length of the day in June?
When is the sunrise / sunset in June?
How long on average sun shines in June?
What are the months with the highest UV index?
How high is the UV index in June?
Average temperature in June
Jefferson, SD
- Average high temperature in June: 79.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in June: 62.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in June
Jefferson, SD
- Average pressure in June: 29.86"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in June
Jefferson, SD
- Average wind speed in June: 8.7mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in June
Jefferson, SD
- Average humidity in June: 75%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).
Average rainfall in June
Jefferson, SD
- Average rainfall in June: 3.03"
The wettest months (with the highest rainfall) are May and June (3.03").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in June
Jefferson, SD
- Average rainfall days in June: 17.8 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in June
Jefferson, SD
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Jefferson, SD
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Jefferson, SD
- Average daylight in June: 15h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in June: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in June
Jefferson, SD
- Average sunshine days in June: 9.7 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (9.7 days).
Average UV index in June
Jefferson, SD
- 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
Jefferson, SD
- Average cloud cover in June: 32
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in June
Jefferson, 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).
Jefferson, South Dakota, USA
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