June weather forecast
Yellowstone National Park, WY

The natural Grand Prismatic hot springs within Yellowstone National Park, Wyoming, with yellow trails and trees and mountains in the background
The natural Grand Prismatic hot springs within Yellowstone National Park, Wyoming, with yellow trails and trees and mountains in the background

Weather in June

June, the first month of the summer in Yellowstone National Park, is an enjoyable month, with an average temperature varying between 35.4°F (1.9°C) and 61.5°F (16.4°C).

Temperature

In June, the average high-temperature increases from a cool 52°F (11.1°C) in May to an enjoyable 61.5°F (16.4°C). In Yellowstone National Park, the average low-temperature is 35.4°F (1.9°C).

Rainfall

In Yellowstone National Park, Wyoming, during June, the rain falls for 14.4 days and regularly aggregates up to 2.25" (57.2mm) of precipitation. Throughout the year, there are 151 rainfall days, and 20.9" (530.8mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Yellowstone National Park, Wyoming, are January through June, September through December. June is the last month it regularly snows in Yellowstone National Park, Wyoming. During 0.9 snowfall days, in June, Yellowstone National Park aggregates 1.3" (33mm) of snow. In Yellowstone National Park, during the entire year, snow falls for 91.4 days and aggregates up to 193.7" (4920mm) of snow.

Daylight

With an average of 15h and 29min of daylight, June has the longest days of the year in Yellowstone National Park.
On the first day of June, sunrise is at 5:40 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 9:10 pm MDT.

Sunshine

The average sunshine in June is 10h.

UV index

In June, the average daily maximum UV index in Yellowstone National Park is 9. A UV Index estimate of 8 to 10 represents a very high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 9 in June interpret into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

How many days does it rain in June in Yellowstone National Park?

In Yellowstone National Park, in June, during 14.4 rainfall days, 2.25" (57.2mm) of precipitation is typically accumulated.

What is the last month it snows in Yellowstone National Park?

June is the last month it regularly snows in Yellowstone National Park. During 0.9 snowfall days, in June, Yellowstone National Park aggregates 1.3" (33mm) of snow.

When are the longest days in Yellowstone National Park?

June has the longest days of the year in Yellowstone National Park, Wyoming, with an average of 15h and 29min of daylight.

How many hours of daylight does Yellowstone National Park have in June?

In June, the average day length in Yellowstone National Park is 15h and 29min.

When are sunrise and sunset in June in Yellowstone National Park?

In June, on the first day of the month, sunrise is at 5:40 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 9:10 pm MDT.

How long on average sun shines in June in Yellowstone National Park?

The average sunshine duration in June is 10h.

How high is the UV index in June in Yellowstone National Park?

In Yellowstone National Park, the average daily maximum UV index in June is 9. A UV Index estimate of 8 to 10 represents a very high health threat from unsafe exposure to Sun's UV rays.
Average rainfall days
Average snowfall days
Average sunshine
Average UV index

Average temperature in June
Yellowstone National Park, WY

Average temperature in June - Yellowstone National Park, WY
  • Average high temperature in June: 61.6°F

The warmest month (with the highest average high temperature) is July (71.6°F).
The month with the lowest average high temperature is December (24.3°F).

  • Average low temperature in June: 35.4°F

The month with the highest average low temperature is July (41.6°F).
The coldest months (with the lowest average low temperature) are January and February (1.2°F).

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Average rainfall in June
Yellowstone National Park, WY

Average rainfall in June - Yellowstone National Park, WY
  • Average rainfall in June: 2.3"

The wettest month (with the highest rainfall) is May (2.5").
The driest month (with the least rainfall) is October (1.2").

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Average rainfall days in June
Yellowstone National Park, WY

Average rainfall days in June - Yellowstone National Park, WY
  • Average rainfall days in June: 14.4 days

The month with the highest number of rainy days is January (16.8 days).
The month with the least rainy days is October (8.8 days).

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Average snowfall in June
Yellowstone National Park, WY

Average snowfall in June - Yellowstone National Park, WY
  • Average snowfall in June: 1.3"

The month with the highest snowfall is January (34.3").
The months with the least snowfall are July and August (0").

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Average snowfall days in June
Yellowstone National Park, WY

Average snowfall days in June - Yellowstone National Park, WY
  • Average snowfall days in June: 0.9 days

The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in June /
Average sunshine in June
Yellowstone National Park, WY

Average daylight in June / Average sunshine in June - Yellowstone National Park, WY
  • Average daylight in June: 15h and 29min

The month with the longest days is June (Average daylight: 15h and 29min).
The month with the shortest days is December (Average daylight: 8h and 55min).

  • Average sunshine in June: 10h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 4h).

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Average UV index in June
Yellowstone National Park, WY

Average UV index in June - Yellowstone National Park, WY
  • Average UV index in June: 9

The month with the highest UV index is July (UV index 10).
The months with the lowest UV index are January and December (UV index 1).

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