Troy
Montana, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Troy, MT

January, like December, is another subzero cold winter month in Troy, Montana, with average temperature fluctuating between 28.8°F (-1.8°C) and 15.3°F (-9.3°C). In January, the average high-temperature is relatively the same as in December - a still subzero cold 28.8°F (-1.8°C). Weather in January »

February, the last month of the winter, in Troy, is another freezing cold month, with temperature in the range of an average low of 15.8°F (-9°C) and an average high of 29.7°F (-1.3°C). In Troy, the average high-temperature in February is essentially the same as in January - a still freezing cold 29.7°F (-1.3°C). Weather in February »

March, the first month of the spring, in Troy, is a wintry month, with temperature in the range of an average low of 22.6°F (-5.2°C) and an average high of 37°F (2.8°C). In Troy, the average high-temperature slightly increases, from a freezing cold 29.7°F (-1.3°C) in February, to a wintry 37°F (2.8°C). Weather in March »

April in Troy, Montana, is a frosty spring month, with temperature in the range of an average low of 28°F (-2.2°C) and an average high of 46.2°F (7.9°C). In Troy, the average high-temperature in April rises, from a wintry 37°F (2.8°C) in March, to a frosty 46.2°F (7.9°C). Weather in April »

May, the last month of the spring, in Troy, is a mild month, with average temperature varying between 36.1°F (2.3°C) and 59.5°F (15.3°C). In Troy, the average high-temperature rises, from a frosty 46.2°F (7.9°C) in April, to a moderate 59.5°F (15.3°C). Weather in May »

The first month of the summer, June, is a comfortable month in Troy, Montana, with average temperature varying between 41.5°F (5.3°C) and 66.2°F (19°C). In June, the average high-temperature slightly increases, from a mild 59.5°F (15.3°C) in May, to an enjoyable 66.2°F (19°C). Weather in June »

July in Troy, Montana, is a moderately hot summer month, with average temperature ranging between min 46.8°F (8.2°C) and max 77.4°F (25.2°C). In Troy, the average high-temperature increases, from an enjoyable 66.2°F (19°C) in June, to a warm 77.4°F (25.2°C). Weather in July »

August, the last month of the summer, in Troy, is also a moderately hot month, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 77.5°F (25.3°C). With an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 47.3°F (8.5°C), August is the warmest month. Weather in August »

The first month of the autumn, September, is also an enjoyable month in Troy, Montana, with average temperature ranging between max 66°F (18.9°C) and min 39.7°F (4.3°C). In September, the average high-temperature decreases, from a warm 77.5°F (25.3°C) in August, to a comfortable 66°F (18.9°C). Weather in September »

October, the same as September, in Troy, Montana, is a frosty autumn month, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 30.7°F (-0.7°C). In October, the average high-temperature declines considerably, from an enjoyable 66°F (18.9°C) in September, to a chilly 49.6°F (9.8°C). Weather in October »

November, the last month of the autumn, in Troy, is also a wintry month, with average temperature fluctuating between 36°F (2.2°C) and 23°F (-5°C). In Troy, Montana, the average high-temperature in November decreases, from a frosty 49.6°F (9.8°C) in October, to a cold 36°F (2.2°C). Weather in November »

December, the first month of the winter, in Troy, is still a freezing cold month, with temperature in the range of an average low of 15.1°F (-9.4°C) and an average high of 27.1°F (-2.7°C). The coldest month is December, with an average high-temperature of 27.1°F (-2.7°C) and an average low-temperature of 15.1°F (-9.4°C). Weather in December »

What is the most humid month in Troy?

January is the most humid month in Troy, with an average relative humidity of 94%.

How many days does it rain in Troy?

Throughout the year, there are 138.8 rainfall days, and 18.15" (461mm) of precipitation is accumulated.

When does it snow in Troy?

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

How many days does it snow in Troy?

In Troy, Montana, during the entire year, snow falls for 91.8 days, and aggregates up to 49.33" (1253mm) of snow.

What is the snowiest month in Troy?

The month with the most snowfall in Troy, Montana, is January when snow falls for 18.1 days and typically aggregates up to 11.34" (288mm) of snow.

What is the month with the least sunshine in Troy?

January has the least sunshine of the year in Troy, with an average of 3h of sunshine.

What is the month with the lowest UV index in Troy?

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

When it does not snow in Troy?

June through August are months without snowfall in Troy.

When are the longest days in Troy?

June has the longest days of the year in Troy, with an average of 16.1h of daylight.

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

Months with the highest UV index in Troy are June and July, with an average maximum UV index of 5.

What are the months with the most sunshine in Troy?

Months with the most sunshine are July and August, with an average of 11.6h of sunshine.

What is the warmest month in Troy?

The warmest month is August, with an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 47.3°F (8.5°C).

What is the least humid month in Troy?

With an average relative humidity of 53%, August is the least humid month in Troy.

What is the driest month in Troy?

The month with the least rainfall in Troy is August when the rain falls for 5.9 days and typically collects 0.43" (11mm) of precipitation.

What is the coldest month in Troy?

With an average high-temperature of 27.1°F (-2.7°C) and an average low-temperature of 15.1°F (-9.4°C), December is the coldest month.

What is the rainiest month in Troy?

December is the month with the most rainfall in Troy. Rain falls for 9.6 days and accumulates 2.24" (57mm) of precipitation.

What is the month with the shortest days in Troy?

With an average of 8.4h of daylight, December has the shortest days of the year.
Average rainfall - Troy, MT
Average rainfall days - Troy, MT

The month with the highest number of rainy days is April (17.5 days).
The month with the least rainy days is August (5.9 days).

Average snowfall - Troy, MT
Average snowfall days - Troy, MT

The month with the highest number of snowfall days is December (20 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Troy, MT

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.4h).

Months with the most sunshine are July and August (Average sunshine: 11.6h).
The month with the least sunshine is January (Average sunshine: 3h).

Average UV index - Troy, MT