June weather forecastCasper, WY
June
Weather in June
June stands at the prelude of the hot months to come in Casper, Wyoming. Indicative of the forthcoming summer, the month records the precipitous drop in relative humidity from 55% to 44%. Accompanying this is a warm cozy atmosphere with high temperatures ascending above 75°F (23.9°C). Long days and a reduced frequency of rain, make outdoor activities all the more enjoyable. Hence, June brings along a promise of a beautiful summer season ahead.Temperature
The shift from May to June in Casper sees a distinct increase in the average high-temperature, escalating from a refreshing 61.3°F (16.3°C) to a warm 75.7°F (24.3°C). June presents a sharp fall from Casper's daytime highs to an average low-temperature of 52.3°F (11.3°C).Humidity
In Casper, the average relative humidity in June is 44%.Rainfall
In Casper, in June, during 9.8 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. In Casper, during the entire year, the rain falls for 91.6 days and collects up to 9.69" (246mm) of precipitation.Snowfall
In Casper, snow does not fall in June through August.Daylight
The month with the longest days in Casper, Wyoming, is June, with an average of 15h and 18min of daylight.On the first day of the month, sunrise is at 5:28 am and sunset at 8:37 pm. On the last day of June, sunrise is at 5:30 am and sunset at 8:47 pm MDT.
Sunshine
In June, the average sunshine in Casper is 11.8h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Casper. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: In June, a regular UV index of 6 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Casper, WY
- Average high temperature in June: 75.7°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in June: 52.3°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is December (15.1°F).
Average pressure in June
Casper, WY
- Average pressure in June: 29.85"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in June
Casper, WY
- Average wind speed in June: 9.6mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in June
Casper, WY
- Average humidity in June: 44%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (37%).
Average rainfall in June
Casper, WY
- Average rainfall in June: 0.91"
The wettest month (with the highest rainfall) is May (1.77").
The driest months (with the least rainfall) are January, August and September (0.43").
Average rainfall days in June
Casper, WY
- Average rainfall days in June: 9.8 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in June
Casper, WY
- Average snowfall in June: 0"
The month with the highest snowfall is November (5.47").
The months with the least snowfall are June, July and August (0").
Average snowfall days in June
Casper, WY
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in June /
Average sunshine in June
Casper, WY
- Average daylight in June: 15h and 18min
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: 11h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in June
Casper, WY
- Average sunshine days in June: 15.3 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in June
Casper, WY
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in June
Casper, WY
- Average cloud cover in June: 16
The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in June
Casper, WY
- 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).
