June welcomes summer in
Yellowstone National Park, bringing mild and comfortable temperatures. A stark contrast is observed from the previous month's rainfall, with a drop to 2.3" (58mm) in June. The month provides broad daylight extending over 15 hours, extra time to appreciate the park's natural beauty. Despite the reduced precipitation, thunderstorms are a common sight. The park's abundant fauna make the most of the tranquil weather, dotting the expansive landscapes.
Temperature
With the onset of June, Yellowstone National Park's average high-temperature experiences a rise, moving from
May's cool 52°F (11.1°C) to a comfortable 61.5°F (16.4°C). Yellowstone National Park documents a substantial deviation from daytime highs with a consistent low-temperature of 35.4°F (1.9°C) during June nights.
Rainfall
In Yellowstone National Park, in June, it is raining for 14.4 days, with typically 2.24" (57mm) of accumulated precipitation. In Yellowstone National Park, during the entire year, the rain falls for 151 days and collects up to 20.91" (531mm) of precipitation.
Snowfall
Months with snowfall are
January through June,
September through
December. June is the last month it regularly snows. During 0.9 snowfall days, in June, Yellowstone National Park aggregates 1.3" (33mm) of snow. Throughout the year, there are 91.4 snowfall days, and 193.7" (4920mm) of snow is accumulated.
Daylight
The month with the longest days in Yellowstone National Park,
Wyoming, is June, with an average of 15h and 30min of daylight.
On the first day of the month, sunrise is at 5:40 am and sunset at 9:00 pm. On the last day of June, in Yellowstone National Park, sunrise is at 5:41 am and sunset at 9:10 pm MDT.
Sunshine
The average sunshine in June in Yellowstone National Park is 10h.
UV index
In Yellowstone National Park, Wyoming, the average daily maximum UV index in June is 9. A UV Index estimate of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In June, an average UV index of 9 transforms into the following instructions:
Take all necessary measures. Eyes and skin are at risk if left unprotected. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. 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. Take note! UV radiation from the Sun can double in intensity due to snow reflection.