Climate and monthly weather forecast
Winston, MT

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Weather in January

January, like December, is a freezing cold winter month in Winston, Montana, with temperature in the range of an average high of 28.9°F (-1.7°C) and an average low of 14.5°F (-9.7°C). Upon the onset of January, Winston witnesses an average high-temperature of a still subzero cold 28.9°F (-1.7°C), showing a close resemblance to the prior month. Weather in January »

Weather in February

February, the last month of the winter in Winston, is another freezing cold month, with an average temperature varying between 29.3°F (-1.5°C) and 14.4°F (-9.8°C). The shift into February finds Winston at an average high-temperature of a still subzero cold 29.3°F (-1.5°C), closely comparable to January's conditions. Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Winston, Montana, with temperature in the range of an average high of 39.7°F (4.3°C) and an average low of 22.6°F (-5.2°C). In Winston, the average high-temperature in March rises, from a freezing cold 29.3°F (-1.5°C) in February, to a cold 39.7°F (4.3°C). Weather in March »

Weather in April

April is a frosty spring month in Winston, Montana, with an average temperature ranging between max 48.7°F (9.3°C) and min 28.8°F (-1.8°C). In Winston, the onset of April comes with an increased average high-temperature, moving from March's cold 39.7°F (4.3°C) to a frosty 48.7°F (9.3°C). Weather in April »

Weather in May

May, the last month of the spring in Winston, is a moderate month, with an average temperature ranging between max 60.4°F (15.8°C) and min 36.9°F (2.7°C). May's arrival sees a rise in the average high-temperature, jumping from April's frosty 48.7°F (9.3°C) to a refreshing 60.4°F (15.8°C). Weather in May »

Weather in June

June, the first month of the summer in Winston, is an agreeable month, with an average temperature fluctuating between 43.3°F (6.3°C) and 70.7°F (21.5°C). June's onset witnesses a shift in the average high-temperature, moving from a moderate 60.4°F (15.8°C) in May to an agreeable 70.7°F (21.5°C). Weather in June »

Weather in July

July is a warm summer month in Winston, Montana, with an average temperature fluctuating between 81.3°F (27.4°C) and 49.3°F (9.6°C). The warmest time of the year is July, with temperatures averaging a high of 81.3°F (27.4°C) and a low of 49.3°F (9.6°C). July's mean heat index is evaluated at 82.4°F (28°C). Weather in July »

Weather in August

August, the last month of the summer in Winston, is another warm month, with temperature in the range of an average low of 49.3°F (9.6°C) and an average high of 79°F (26.1°C). The average high-temperature during August is a still warm 79°F (26.1°C), almost matching the conditions of the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Winston, is also an agreeable month, with an average temperature ranging between max 68.5°F (20.3°C) and min 43.3°F (6.3°C). Welcoming September, Winston observes a shift in the average high-temperature, falling from August's moderately hot 79°F (26.1°C) to an agreeable 68.5°F (20.3°C). Weather in September »

Weather in October

October, like September, in Winston, Montana, is another fresh autumn month, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 51.6°F (10.9°C). The onset of October brings a distinct decrease in the average high-temperature, receding from a pleasant 68.5°F (20.3°C) in September to a fresh 51.6°F (10.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Winston, Montana, with temperature in the range of an average high of 37.6°F (3.1°C) and an average low of 21.7°F (-5.7°C). Winston's transition into November involves a shift in temperature, receding from a cool 51.6°F (10.9°C) in October to an icy 37.6°F (3.1°C). Weather in November »

Weather in December

December, the first month of the winter in Winston, is still a freezing cold month, with an average temperature fluctuating between 27.1°F (-2.7°C) and 13.1°F (-10.5°C). December, marked by an average high-temperature of 27.1°F (-2.7°C) and a low-temperature of 13.1°F (-10.5°C), is the coldest month. Weather in December »
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month in Winston?

January is the most humid month in Winston, with an average relative humidity of 86%.

How many days does it rain in Winston?

Throughout the year, in Winston, there are 117.5 rainfall days, and 10.24" (260mm) of precipitation is accumulated.

When does it snow in Winston?

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

How many days does it snow in Winston?

Throughout the year, in Winston, there are 72.8 snowfall days, and 26.22" (666mm) of snow is accumulated.

What is the month with the least sunshine in Winston?

The month with the least sunshine in Winston, Montana, is January, with an average of 5.5h of sunshine.

What is the snowiest month in Winston?

February is the month with the most snowfall in Winston. Snow falls for 15.4 days and accumulates 5.71" (145mm) of snow.

When is the lowest UV index in Winston?

February and December, with an average maximum UV index of 1, are months with the lowest UV index in Winston, Montana.

When is Daylight Saving Time (DST) in Winston?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Winston, Montana, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

What is the wettest month in Winston?

June is the month with the most rainfall in Winston, Montana. Rain falls for 13.5 days and accumulates 1.65" (42mm) of precipitation.

When it does not snow in Winston?

June through August are months without snowfall.

When are the longest days in Winston?

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

What is the warmest month in Winston?

July, with average temperatures reaching a high of 81.3°F (27.4°C) and a low of 49.3°F (9.6°C), is the warmest month.

What month has the most sunshine in Winston?

July has the most sunshine of the year in Winston, Montana, with an average of 11.7h of sunshine.

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

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

What is the least humid month in Winston?

With an average relative humidity of 46%, August is the least humid month.

What are the coldest months in Winston?

December proves to be the coldest month in Winston, recording an average maximum temperature of 27.1°F (-2.7°C) and a minimum temperature of 13.1°F (-10.5°C).

What is the driest month in Winston?

The month with the least rainfall is December, when the rain falls for 6.3 days and typically collects 0.51" (13mm) of precipitation.

What is the month with the shortest days in Winston?

The month with the shortest days is December, with an average of 8h and 42min of daylight.

Average temperature
Winston, MT

Average temperature - Winston, MT

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is December (27.1°F).

The months with the highest average low temperature are July and August (49.3°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

Average pressure
Winston, MT

Average pressure - Winston, MT

The months with the highest atmospheric pressure are January and December (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed
Winston, MT

Average wind speed - Winston, MT

The windiest month (with the highest average wind speed) is December (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity
Winston, MT

Average humidity - Winston, MT

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (46%).

Average rainfall
Winston, MT

Average rainfall - Winston, MT

The wettest month (with the highest rainfall) is June (1.65").
The driest month (with the least rainfall) is December (0.51").

Average rainfall days
Winston, MT

Average rainfall days - Winston, MT

The month with the highest number of rainy days is April (14.7 days).
The month with the least rainy days is January (6.2 days).

Average snowfall
Winston, MT

Average snowfall - Winston, MT

The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Winston, MT

Average snowfall days - Winston, MT

The month with the highest number of snowfall days is February (15.4 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Winston, MT

Average daylight / Average sunshine - Winston, MT

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 42min).

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days
Winston, MT

Average sunshine days - Winston, MT

The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is April (10.5 days).

Average visibility
Winston, MT

Average visibility - Winston, MT

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

Winston, Montana, USA

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