Climate and monthly weather forecast
Fortine, MT

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Weather in January

January, like December, is a freezing cold winter month in Fortine, Montana, with temperature in the range of an average low of 14.2°F (-9.9°C) and an average high of 27.3°F (-2.6°C). In January, Fortine's weather conditions record an average high-temperature of a still subzero cold 27.3°F (-2.6°C), demonstrating little divergence from the preceding month. Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Fortine, Montana, with an average temperature varying between 28.8°F (-1.8°C) and 13.8°F (-10.1°C). Fortine observes an average high-temperature of a still subzero cold 28.8°F (-1.8°C) in February, barely different from 27.3°F (-2.6°C) in January. Weather in February »

Weather in March

The first month of the spring, March, is an icy month in Fortine, Montana, with an average temperature fluctuating between 36.3°F (2.4°C) and 21.2°F (-6°C). Entering March, Fortine notices a subtle temperature elevation, with the average high-temperature advancing from February's subzero cold 28.8°F (-1.8°C) to a wintry 36.3°F (2.4°C). Weather in March »

Weather in April

April is a frosty spring month in Fortine, Montana, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 27°F (-2.8°C). April's arrival brings a temperature shift, moving from an icy 36.3°F (2.4°C) in March to a frosty 46.4°F (8°C). Weather in April »

Weather in May

May, the last month of the spring in Fortine, is a moderate month, with temperature in the range of an average low of 34.5°F (1.4°C) and an average high of 59.7°F (15.4°C). As May arrives, Fortine's weather shows an increase in high-temperatures, moving from April's frosty 46.4°F (8°C) to a mild 59.7°F (15.4°C). Weather in May »

Weather in June

June, the first month of the summer in Fortine, is a comfortable month, with an average temperature varying between 66.6°F (19.2°C) and 40.5°F (4.7°C). June's onset witnesses a minor shift in the average high-temperature, moving from a mild 59.7°F (15.4°C) in May to an enjoyable 66.6°F (19.2°C). Weather in June »

Weather in July

July in Fortine, Montana, is a moderately hot summer month, with an average temperature ranging between min 44.4°F (6.9°C) and max 77.4°F (25.2°C). July is the warmest month of the year, registering average temperatures as high as 77.4°F (25.2°C) and as low as 44.4°F (6.9°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Fortine, Montana, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 45.1°F (7.3°C). The onset of August brings an average high-temperature of a still moderately hot 77.2°F (25.1°C), nearly matching the July temperature. Weather in August »

Weather in September

September, the first month of the autumn in Fortine, is also an enjoyable month, with an average temperature varying between 38.7°F (3.7°C) and 65.8°F (18.8°C). In September, the average high-temperature goes from a warm 77.2°F (25.1°C) in August to a refreshing 65.8°F (18.8°C). Weather in September »

Weather in October

October, like September, is a frosty autumn month in Fortine, Montana, with an average temperature ranging between max 49.1°F (9.5°C) and min 30.6°F (-0.8°C). The shift from September to October sees a distinct decrease in the average high-temperature, dropping from a comfortable 65.8°F (18.8°C) to a frosty 49.1°F (9.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Fortine, Montana, with temperature in the range of an average high of 34.7°F (1.5°C) and an average low of 22.1°F (-5.5°C). As October transitions into November, a clear downswing in temperatures is observed, with average highs retreating from a chilly 49.1°F (9.5°C) to an icy 34.7°F (1.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Fortine, Montana, with temperature in the range of an average high of 25.5°F (-3.6°C) and an average low of 13.1°F (-10.5°C). The coldest period tends to be December, when average temperatures fluctuate between a high of 25.5°F (-3.6°C) and a low of 13.1°F (-10.5°C). Weather in December »
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month?

The most humid month is January, with an average relative humidity of 95%.

How many days does it rain in Fortine?

Throughout the year, there are 136.3 rainfall days, and 15.35" (390mm) of precipitation is accumulated.

When does it snow?

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

How much does it snow?

In Fortine, during the entire year, snow falls for 110.7 days and aggregates up to 46.81" (1189mm) of snow.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.1h of sunshine.

What is the month with the lowest UV index?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Fortine.

When does it snow the most?

The month with the most snowfall is February, when snow falls for 20.5 days and typically aggregates up to 10" (254mm) of snow.

What is the wettest month?

March is the month with the most rainfall. Rain falls for 16.8 days and accumulates 1.85" (47mm) of precipitation.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.

When it does not snow?

In Fortine, snow does not fall in June through August.

When are the longest days?

With an average of 16h and 6min of daylight, June has the longest days of the year.

What is the warmest month?

Fortine's warmest month, July, registers temperatures that range from a high of 77.4°F (25.2°C) to a low of 44.4°F (6.9°C).

When is the highest UV index?

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

What is the least humid month in Fortine?

August is the least humid month, with an average relative humidity of 55%.

What is the driest month?

August is the month with the least rainfall. Rain falls for 6.1 days and accumulates 0.39" (10mm) of precipitation.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 11.7h of sunshine.

What time of the year is the coldest?

In Fortine, December is the month with the lowest recorded average temperatures, measuring a high of 25.5°F (-3.6°C) and a low of 13.1°F (-10.5°C).

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 18min of daylight.

Average temperature
Fortine, MT

Average temperature - Fortine, MT

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.5°F).

The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

Average pressure
Fortine, MT

Average pressure - Fortine, MT

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
Fortine, MT

Average wind speed - Fortine, MT

The windiest month (with the highest average wind speed) is June (4.4mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

Average humidity
Fortine, MT

Average humidity - Fortine, MT

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).

Average rainfall
Fortine, MT

Average rainfall - Fortine, MT

The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is August (0.39").

Average rainfall days
Fortine, MT

Average rainfall days - Fortine, MT

The month with the highest number of rainy days is April (17 days).
The month with the least rainy days is August (6.1 days).

Average snowfall
Fortine, MT

Average snowfall - Fortine, MT

The month with the highest snowfall is February (10").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Fortine, MT

Average snowfall days - Fortine, MT

The month with the highest number of snowfall days is December (22.1 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Fortine, MT

Average daylight / Average sunshine - Fortine, MT

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days
Fortine, MT

Average sunshine days - Fortine, MT

The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is March (6.3 days).

Average UV index
Fortine, MT

Average UV index - Fortine, MT

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average visibility
Fortine, MT

Average visibility - Fortine, MT

The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

Fortine, Montana, USA

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