June weather forecast
Lewistown, MT

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Weather in June

June marks the advent of summer in Lewistown with higher temperatures compared to May peaking at 68.5°F (20.3°C). The trend shifts towards drier weather with a drop in rainfall to 2.83" (72mm). Longer sunshine duration, extending to the max of 11.1 hours daily, encapsulates the quintessential summer attributes. Consistently, gusty winds keep the climate refreshing against the backdrop of increasing temperatures. Evolving weather patterns imply an unhurried, yet significant, move towards a hotter and drier period.

Temperature

The start of June is characterized by an increase in the average high-temperature, transitioning from a refreshing 58.5°F (14.7°C) in May to an agreeable 68.5°F (20.3°C). Lewistown records an average temperature drop to a frosty 47.8°F (8.8°C) in June.

Humidity

In Lewistown, the average relative humidity in June is 62%.

Rainfall

In Lewistown, in June, during 17 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 126.2 rainfall days, and 17.83" (453mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall. June is the last month it regularly snows. During 0.2 snowfall days, in June, Lewistown aggregates 0.04" (1mm) of snow. In Lewistown, during the entire year, snow falls for 83.4 days and aggregates up to 45.51" (1156mm) of snow.

Daylight

The month with the longest days is June, with an average of 15h and 48min of daylight.
On the first day of June in Lewistown, sunrise is at 5:25 am and sunset at 9:05 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 9:16 pm MDT.

Sunshine

In June, the average sunshine is 11.1h.

UV index

In Lewistown, the average daily maximum UV index in June is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 5 in June translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.

Frequently asked questions

What are June temperatures?

An average high-temperature, in June, in Lewistown, is 68.5°F (20.3°C) and the average low-temperature is 47.8°F (8.8°C).

What is the average humidity in June?

In Lewistown, the average relative humidity in June is 62%.

How much does it rain in June?

In Lewistown, during June, the rain falls for 17 days and regularly aggregates up to 2.83" (72mm) of precipitation.

What is the last month it snows?

June is the last month it regularly snows. During 0.2 snowfall days, in June, Lewistown aggregates 0.04" (1mm) of snow.

When are the longest days?

With an average of 15h and 48min of daylight, June has the longest days of the year.

How many hours of daylight does Lewistown have in June?

In Lewistown, Montana, the average day length in June is 15h and 50min.

What time are sunrise and sunset in June?

In June, on the first day of the month, sunrise is at 5:25 am and sunset at 9:05 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 9:16 pm MDT.

How long on average sun shines in June?

In June, the average sunshine duration is 11.1h.

What is the UV index reading in June?

In Lewistown, the average daily maximum UV index in June is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Lewistown, MT

Average temperature in June - Lewistown, MT
  • Average high temperature in June: 68.5°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The months with the lowest average high temperature are February and December (29.1°F).

  • Average low temperature in June: 47.8°F

The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).

Average pressure in June
Lewistown, MT

Average pressure in June - Lewistown, MT
  • Average pressure in June: 29.85"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in June
Lewistown, MT

Average wind speed in June - Lewistown, MT
  • Average wind speed in June: 8.5mph

The windiest months (with the highest average wind speed) are January, April and October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).

Average humidity in June
Lewistown, MT

Average humidity in June - Lewistown, MT
  • Average humidity in June: 62%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (47%).

Average rainfall in June
Lewistown, MT

Average rainfall in June - Lewistown, MT
  • Average rainfall in June: 2.83"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in June
Lewistown, MT

Average rainfall days in June - Lewistown, MT
  • Average rainfall days in June: 17 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in June
Lewistown, MT

Average snowfall in June - Lewistown, MT
  • Average snowfall in June: 0.04"

The month with the highest snowfall is April (9.13").
The months with the least snowfall are July and August (0").

Average snowfall days in June
Lewistown, MT

Average snowfall days in June - Lewistown, MT
  • Average snowfall days in June: 0.2 days

The month with the highest number of snowfall days is February (15.2 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in June /
Average sunshine in June
Lewistown, MT

Average daylight in June / Average sunshine in June - Lewistown, MT
  • Average daylight in June: 15h and 5min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in June: 11h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in June
Lewistown, MT

Average sunshine days in June - Lewistown, MT
  • Average sunshine days in June: 9.9 days

The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (8.3 days).

Average UV index in June
Lewistown, MT

Average UV index in June - Lewistown, MT
  • Average UV index in June: 5

The month with the highest UV index is July (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
Lewistown, MT

Average cloud cover in June - Lewistown, MT
  • Average cloud cover in June: 27

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 16).

Average visibility in June
Lewistown, MT

Average visibility in June - Lewistown, MT
  • 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).

Lewistown, Montana, USA

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