Monthly weather forecast and climate
Colstrip, MT

Weather in January

January, the same as December, in Colstrip, Montana, is a freezing cold winter month, with average temperature ranging between max 30.6°F (-0.8°C) and min 16°F (-8.9°C). In Colstrip, Montana, the average high-temperature is relatively the same as in December - a still subzero cold 30.6°F (-0.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Colstrip, Montana, with average temperature ranging between max 31.1°F (-0.5°C) and min 16.2°F (-8.8°C). In Colstrip, the average high-temperature is practically the same as in January - a still subzero cold 31.1°F (-0.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Colstrip, Montana, with average temperature varying between 28.2°F (-2.1°C) and 45°F (7.2°C). In Colstrip, the average high-temperature increases, from a subzero cold 31.1°F (-0.5°C) in February, to a frosty 45°F (7.2°C). Weather in March »

Weather in April

April in Colstrip, Montana, is a cool spring month, with average temperature varying between 35.4°F (1.9°C) and 53.8°F (12.1°C). In Colstrip, the average high-temperature slightly increases, from a frosty 45°F (7.2°C) in March, to a cool 53.8°F (12.1°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Colstrip, Montana, with average temperature ranging between min 44.2°F (6.8°C) and max 64°F (17.8°C). In Colstrip, Montana, the average high-temperature in May increases, from a fresh 53.8°F (12.1°C) in April, to an enjoyable 64°F (17.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Colstrip, Montana, with average temperature ranging between max 75.6°F (24.2°C) and min 54°F (12.2°C). In June, the average high-temperature rises, from an enjoyable 64°F (17.8°C) in May, to a warm 75.6°F (24.2°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Colstrip, Montana, with temperature in the range of an average high of 85.5°F (29.7°C) and an average low of 61.9°F (16.6°C). July is the warmest month, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 61.9°F (16.6°C). The average heat index in July is appraised at 85.6°F (29.8°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Colstrip, Montana, with temperature in the range of an average high of 83.3°F (28.5°C) and an average low of 61.2°F (16.2°C). In Colstrip, Montana, the average high-temperature is essentially the same as in July - a still moderately hot 83.3°F (28.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Colstrip, Montana, with average temperature ranging between min 53.2°F (11.8°C) and max 73.8°F (23.2°C). In Colstrip, the average high-temperature in September decreases, from 83.3°F (28.5°C) in August, to a still moderately hot 73.8°F (23.2°C). Weather in September »

Weather in October

October, the same as September, in Colstrip, Montana, is another mild autumn month, with average temperature ranging between min 39.6°F (4.2°C) and max 56.1°F (13.4°C). In October, the average high-temperature plummets, from a warm 73.8°F (23.2°C) in September, to a mild 56.1°F (13.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Colstrip, Montana, with average temperature fluctuating between 42.6°F (5.9°C) and 27.1°F (-2.7°C). In November, the average high-temperature decreases, from a moderate 56.1°F (13.4°C) in October, to a cold 42.6°F (5.9°C). Weather in November »

Weather in December

December, the first month of the winter, in Colstrip, is still a freezing cold month, with average temperature fluctuating between 30.4°F (-0.9°C) and 16.7°F (-8.5°C). December is the coldest month, with an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 16.7°F (-8.5°C). Weather in December »
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FAQ

What is the most humid month in Colstrip?

The most humid month in Colstrip is January, with an average relative humidity of 80%.

How many days does it rain in Colstrip?

Throughout the year, there are 113.9 rainfall days, and 14.84" (377mm) of precipitation is accumulated.

When does it snow in Colstrip?

Months with snowfall in Colstrip are January through June, September through December.

How much does it snow in Colstrip?

Throughout the year, in Colstrip, Montana, there are 55.2 snowfall days, and 23.5" (597mm) of snow is accumulated.

When is the lowest UV index in Colstrip?

Months with the lowest UV index in Colstrip, Montana, are January through April, November and December, with an average maximum UV index of 2.

When does it snow the most in Colstrip?

February is the month with the most snowfall. Snow falls for 10.4 days and accumulates 4.33" (110mm) of snow.

What is the month with the least sunshine in Colstrip?

February has the least sunshine of the year in Colstrip, Montana, with an average of 5h of sunshine.

What is the wettest month in Colstrip?

May is the month with the most rainfall in Colstrip. Rain falls for 16.8 days and accumulates 2.56" (65mm) of precipitation.

When are the longest days in Colstrip?

The month with the longest days in Colstrip, Montana, is June, with an average of 15.7h of daylight.

What is the warmest month in Colstrip?

July is the warmest month, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 61.9°F (16.6°C).

When it does not snow in Colstrip?

In Colstrip, Montana, snow does not fall in July and August.

What month has the most sunshine in Colstrip?

With an average of 11.8h of sunshine, July has the most sunshine of the year.

What is the month with the highest UV index in Colstrip?

July is the month with the highest UV index, with an average maximum UV index of 7.

What is the least humid month in Colstrip?

August is the least humid month in Colstrip, Montana, with an average relative humidity of 42%.

What is the coldest month in Colstrip?

The coldest month in Colstrip, Montana, is December, with an average high-temperature of 30.4°F (-0.9°C) and an average low-temperature of 16.7°F (-8.5°C).

What is the driest month in Colstrip?

December is the month with the least rainfall in Colstrip. Rain falls for 3.4 days and accumulates 0.47" (12mm) of precipitation.

What is the month with the shortest days in Colstrip?

December has the shortest days of the year, with an average of 8.7h of daylight.

Average pressure
Colstrip, MT

Average pressure - Colstrip, MT

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is June (29.84").

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Average wind speed
Colstrip, MT

Average wind speed - Colstrip, MT

The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

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Average rainfall
Colstrip, MT

Average rainfall - Colstrip, MT

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is December (0.47").

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Average rainfall days
Colstrip, MT

Average rainfall days - Colstrip, MT

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall
Colstrip, MT

Average snowfall - Colstrip, MT

The month with the highest snowfall is February (4.33").
Months with the least snowfall are July and August (0").

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Average snowfall days
Colstrip, MT

Average snowfall days - Colstrip, MT

The month with the highest number of snowfall days is February (10.4 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight / Average sunshine
Colstrip, MT

Average daylight / Average sunshine - Colstrip, MT

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 5h).

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Average sunshine days
Colstrip, MT

Average sunshine days - Colstrip, MT

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.3 days).

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Average UV index
Colstrip, MT

Average UV index - Colstrip, MT

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February, March, April, November and December (UV index 2).

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Average visibility
Colstrip, MT

Average visibility - Colstrip, MT

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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