Monthly weather forecast and climate
Greycliff, MT

Weather in January

January, like December, is another subzero cold winter month in Greycliff, Montana, with average temperature fluctuating between 17.8°F (-7.9°C) and 30.6°F (-0.8°C). In January, the average high-temperature is almost 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 another freezing cold month in Greycliff, Montana, with temperature in the range of an average high of 29.7°F (-1.3°C) and an average low of 15.3°F (-9.3°C). In Greycliff, the average high-temperature is practically the same as in January - a still freezing cold 29.7°F (-1.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Greycliff, Montana, with average temperature varying between 39.4°F (4.1°C) and 24.3°F (-4.3°C). In Greycliff, the average high-temperature in March increases, from a freezing cold 29.7°F (-1.3°C) in February, to a cold 39.4°F (4.1°C). Weather in March »

Weather in April

April in Greycliff, Montana, is a chilly spring month, with average temperature ranging between max 46.6°F (8.1°C) and min 29.7°F (-1.3°C). In April, the average high-temperature slightly increases, from a wintry 39.4°F (4.1°C) in March, to a frosty 46.6°F (8.1°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderate month in Greycliff, Montana, with average temperature ranging between min 37.4°F (3°C) and max 56.8°F (13.8°C). In May, the average high-temperature increases, from a chilly 46.6°F (8.1°C) in April, to a moderate 56.8°F (13.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Greycliff, Montana, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 68°F (20°C). In Greycliff, the average high-temperature increases, from a moderate 56.8°F (13.8°C) in May, to an agreeable 68°F (20°C). Weather in June »

Weather in July

July in Greycliff, Montana, is a warm summer month, with average temperature ranging between max 78.6°F (25.9°C) and min 52.5°F (11.4°C). With an average high-temperature of 78.6°F (25.9°C) and an average low-temperature of 52.5°F (11.4°C), July is the warmest month. Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Greycliff, Montana, with average temperature varying between 52.9°F (11.6°C) and 76.6°F (24.8°C). In August, the average high-temperature is essentially the same as in July - a still moderately hot 76.6°F (24.8°C). Weather in August »

Weather in September

September, the first month of the autumn, in Greycliff, is still a comfortable month, with average temperature fluctuating between 66.7°F (19.3°C) and 45.3°F (7.4°C). In Greycliff, Montana, the average high-temperature in September drops, from a warm 76.6°F (24.8°C) in August, to an enjoyable 66.7°F (19.3°C). Weather in September »

Weather in October

October, like September, in Greycliff, Montana, is a cool autumn month, with average temperature fluctuating between 34.3°F (1.3°C) and 51.1°F (10.6°C). In Greycliff, the average high-temperature plummets, from a comfortable 66.7°F (19.3°C) in September, to a fresh 51.1°F (10.6°C). Weather in October »

Weather in November

November, the last month of the autumn, in Greycliff, is also a wintry month, with average temperature fluctuating between 38.1°F (3.4°C) and 23.9°F (-4.5°C). In Greycliff, the average high-temperature in November decreases, from a cool 51.1°F (10.6°C) in October, to a cold 38.1°F (3.4°C). Weather in November »

Weather in December

December, the first month of the winter, in Greycliff, is still a freezing cold month, with average temperature ranging between min 16°F (-8.9°C) and max 28.4°F (-2°C). The coldest month is December, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16°F (-8.9°C). Weather in December »
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FAQ

How much does it rain in Greycliff?

In Greycliff, during the entire year, the rain falls for 129.6 days and collects up to 15.83" (402mm) of precipitation.

What is the driest month in Greycliff?

The month with the least rainfall in Greycliff is January when the rain falls for 5.3 days and typically collects 0.47" (12mm) of precipitation.

When does it snow in Greycliff?

Months with snowfall in Greycliff are January through May, September through December.

How much does it snow in Greycliff?

In Greycliff, Montana, during the entire year, snow falls for 67.6 days, and aggregates up to 38.19" (970mm) of snow.

What is the month with the least sunshine in Greycliff?

Months with the least sunshine in Greycliff, Montana, are January, February and December, with an average of 6.2h of sunshine.

When is the lowest UV index in Greycliff?

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

What is the most humid month in Greycliff?

With an average relative humidity of 80%, February is the most humid month in Greycliff.

When does it snow the most in Greycliff?

March is the month with the most snowfall in Greycliff, Montana. Snow falls for 10.1 days and accumulates 7.09" (180mm) of snow.

What is the wettest month in Greycliff?

The month with the most rainfall is May when the rain falls for 19.8 days and typically aggregates up to 3.15" (80mm) of precipitation.

When it does not snow in Greycliff?

In Greycliff snow does not fall in June through August.

When are the longest days in Greycliff?

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

What is the warmest month in Greycliff?

July is the warmest month, with an average high-temperature of 78.6°F (25.9°C) and an average low-temperature of 52.5°F (11.4°C).

What month has the most sunshine in Greycliff?

July has the most sunshine of the year in Greycliff, Montana, with an average of 11.8h of sunshine.

When is the highest UV index in Greycliff?

With an average maximum UV index of 6, July is the month with the highest UV index.

What is the least humid month in Greycliff?

August is the least humid month in Greycliff, with an average relative humidity of 47%.

What is the coldest month in Greycliff?

The coldest month is December, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16°F (-8.9°C).

What is the month with the shortest days in Greycliff?

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

Average temperature
Greycliff, MT

Average temperature - Greycliff, MT

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is December (28.4°F).

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).

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Average pressure
Greycliff, MT

Average pressure - Greycliff, MT

Months with the highest atmospheric pressure are January and December (30.16").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed
Greycliff, MT

Average wind speed - Greycliff, MT

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

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Average rainfall
Greycliff, MT

Average rainfall - Greycliff, MT

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days
Greycliff, MT

Average rainfall days - Greycliff, MT

The month with the highest number of rainy days is May (19.8 days).
Months with the least rainy days are January and December (5.3 days).

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Average snowfall
Greycliff, MT

Average snowfall - Greycliff, MT

The month with the highest snowfall is March (7.09").
Months with the least snowfall are June, July and August (0").

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Average snowfall days
Greycliff, MT

Average snowfall days - Greycliff, MT

The month with the highest number of snowfall days is February (12.9 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Greycliff, MT

Average daylight / Average sunshine - Greycliff, 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).
Months with the least sunshine are January, February and December (Average sunshine: 6.2).

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Average sunshine days
Greycliff, MT

Average sunshine days - Greycliff, MT

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (7.7 days).

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Average UV index
Greycliff, MT

Average UV index - Greycliff, MT

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average visibility
Greycliff, MT

Average visibility - Greycliff, 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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