Helena
Montana, USA
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Helena, MT

The State Capital building of Montana in Helena city, set on a beautiful natural park
The State Capital building of Montana in Helena city, set on a beautiful natural park
The first month of the summer, June, is a warm month in Helena, Montana, with average temperature fluctuating between 48.6°F (9.2°C) and 75.7°F (24.3°C).

Temperature

In Helena, the average high-temperature marginally rises, from an enjoyable 67.1°F (19.5°C) in May, to a moderately hot 75.7°F (24.3°C). The average low-temperature, in Helena, Montana, is 48.6°F (9.2°C).

Humidity

The average relative humidity in Helena is 52.1%.

Rainfall

June is the month with the most rainfall. Rain falls for 11.2 days and accumulates 2.1" (52.3mm) of precipitation.

Snowfall

In Helena snow does not fall and July.

Daylight

June has the longest days of the year, with an average of 15.8h of daylight.

Sunshine

In Helena, the average sunshine is 10.3h.

UV index

In Helena, the average daily maximum UV index is 8. A UV Index estimate of 8 to 10 represents a very high health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: In June, the average maximum UV index of 8 translate into the following recommendations:
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 Helena?

The average high-temperature, in June, in Helena, Montana, is 75.7°F (24.3°C), while the average low-temperature is 48.6°F (9.2°C).

What is the average humidity in June in Helena?

In Helena, Montana, the average relative humidity in June is 52.1%.

How much does it rain in Helena in June?

In June, in Helena, the rain falls for 11.2 days. Throughout June, 2.1" (52.3mm) of precipitation is accumulated.

What is the rainiest month in Helena?

June is the month with the most rainfall. Rain falls for 11.2 days and accumulates 2.1" (52.3mm) of precipitation.

Does it snow in Helena in June?

In June, it doesn't snow. May is the latest month when it typically snows.

When it does not snow in Helena?

June and July are months without snowfall in Helena, Montana.

When are the longest days in Helena?

June has the longest days of the year, with an average of 15.8h of daylight.

How many hours of daylight does Helena have in June?

In June, the average length of the day in Helena, Montana, is 15.8h.

How long on average sun shines in June in Helena?

The average sunshine in June in Helena is 10.3h.

What is the UV index reading in June in Helena?

The average daily maximum UV index in June in Helena is 8. A UV Index estimate of 8 to 10 represents a very high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in June - Helena, MT
  • Average high temperature in June: 75.7°F

The warmest month (with the highest average high temperature) is July (85.7°F).
The month with the lowest average high temperature is December (31.7°F).

  • Average low temperature in June: 48.5°F

The month with the highest average low temperature is July (54.3°F).
The coldest month (with the lowest average low temperature) is December (11.9°F).

Average humidity in June - Helena, MT
  • Average humidity in June: 52.1%

The month with the highest relative humidity is December (68.1%).
The month with the lowest relative humidity is July (46.4%).

Average rainfall in June - Helena, MT
  • Average rainfall in June: 2.1"

The wettest month (with the highest rainfall) is June (2.1").
The driest month (with the lowest rainfall) is February (0.3").

Average rainfall days in June - Helena, MT
  • Average rainfall days in June: 11.2 days

The month with the highest number of rainy days is June (11.2 days).
The month with the lowest number of rainy days is February (5.9 days).

Average snowfall in June - Helena, MT
  • Average snowfall in June: 0"

The month with the highest snowfall is December (7.3").
Months with the lowest snowfall are June and July (0").

Average snowfall days in June - Helena, MT
  • Average snowfall days in June: 0.1 days

The month with the highest number of snowfall days is December (6 days).
The month with the lowest number of snowfall days is July (0 days).

Average daylight in June / Average sunshine in June - Helena, MT
  • Average daylight in June: 15.8h

The month with the longest days is June (Average daylight: 15.8h).
The month with shortest days is December (Average daylight: 8.6h).

  • Average sunshine in June: 10.3h

The month with most sunshine is July (Average sunshine: 11.9h).
The month with least sunshine is December (Average sunshine: 3.2h).

Average UV index in June - Helena, MT
  • Average UV index in June: 8

The month with the highest UV index is July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 1).