Great Falls
Montana, USA
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Great Falls, MT

A far view from on top of the vast Missouri River of the City of Lights, Great Falls, Montana, a dusk sky, mirror images in the water
A far view from on top of the vast Missouri River of the City of Lights, Great Falls, Montana, a dusk sky, mirror images in the water
The first month of the summer, June, is a pleasant month in Great Falls, Montana, with temperature in the range of an average high of 73.2°F (22.9°C) and an average low of 46°F (7.8°C).

Temperature

In Great Falls, the average high-temperature slightly increases, from an enjoyable 64.8°F (18.2°C) in May, to an agreeable 73.2°F (22.9°C). In Great Falls, the average low-temperature is 46°F (7.8°C).

Rainfall

June is the month with the most rainfall in Great Falls. Rain falls for 11.7 days and accumulates 2.5" (64.3mm) of precipitation.

Snowfall

Months with snowfall are January through June, August through December.

Daylight

June has the longest days of the year in Great Falls, with an average of 15.9h of daylight.

Sunshine

The average sunshine in Great Falls is 10.6h.

UV index

Months with the highest UV index in Great Falls are June and July, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV radiation for average individuals.
The average daily UV index of 8 in June transform into the following instructions:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in June in Great Falls?

The average high-temperature, in June, in Great Falls, Montana, is 73.2°F (22.9°C), while the average low-temperature is 46°F (7.8°C).

How many days does it rain in June in Great Falls?

In June, in Great Falls, Montana, the rain falls for 11.7 days. Throughout June, 2.5" (64.3mm) of precipitation is accumulated.

What is the rainiest month in Great Falls?

The month with the most rainfall is June when the rain falls for 11.7 days and typically aggregates up to 2.5" (64.3mm) of precipitation.

What is the last month it snows in Great Falls?

June is the last month it regularly snows in Great Falls. During 0.2 snowfall days, in June, Great Falls aggregates 0.3" (7.6mm) of snow.

When are the longest days in Great Falls?

June has the longest days of the year in Great Falls, with an average of 15.9h of daylight.

What is the average length of the day in June in Great Falls?

The average length of the day in June in Great Falls, Montana, is 15.9h.

How many hours of sunshine does Great Falls have in June?

In Great Falls, Montana, the average sunshine in June is 10.6h.

What are the months with the highest UV index in Great Falls?

June and July, with an average maximum UV index of 8, are months with the highest UV index in Great Falls, Montana.

What is the UV index reading in June in Great Falls?

The average daily maximum UV index in June is 8. A UV Index estimate of 8 to 10 represents a very high health threat from the exposure to the Sun's UV radiation.
Average temperature in June - Great Falls, MT
  • Average high temperature in June: 73.3°F

The warmest month (with the highest average high temperature) is July (83.4°F).
The month with the lowest average high temperature is December (34.6°F).

  • Average low temperature in June: 46.1°F

The month with the highest average low temperature is July (51.4°F).
Coldest months (with the lowest average low temperature) are January and December (14.9°F).

Average rainfall in June - Great Falls, MT
  • Average rainfall in June: 2.5"

The wettest month (with the highest rainfall) is June (2.5").
Driest months (with the lowest rainfall) are January and February (0.5").

Average rainfall days in June - Great Falls, MT
  • Average rainfall days in June: 11.7 days

Months with the highest number of rainy days are May and June (11.7 days).
The month with the lowest number of rainy days is October (6.6 days).

Average snowfall in June - Great Falls, MT
  • Average snowfall in June: 0.3"

The month with the highest snowfall is March (11.9").
The month with the lowest snowfall is July (0").

Average snowfall days in June - Great Falls, MT
  • Average snowfall days in June: 0.2 days

The month with the highest number of snowfall days is March (7.8 days).
The month with the lowest number of snowfall days is July (0 days).

Average daylight in June / Average sunshine in June - Great Falls, MT
  • Average daylight in June: 15.9h

The month with the longest days is June (Average daylight: 15.9h).
The month with shortest days is December (Average daylight: 8.5h).

  • Average sunshine in June: 10.6h

The month with most sunshine is July (Average sunshine: 12.2h).
The month with least sunshine is December (Average sunshine: 3.4h).

Average UV index in June - Great Falls, MT
  • Average UV index in June: 8

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).