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

Monthly weather forecast and climate
Hamilton, MT

A strong suspension bridge over a fast river in Hamilton, Montana, overlooking scenic trees and hilly landscapes over the other side of the shore
A strong suspension bridge over a fast river in Hamilton, Montana, overlooking scenic trees and hilly landscapes over the other side of the shore
January, the same as December, is another cold winter month in Hamilton, Montana, with average temperature varying between 18.9°F (-7.3°C) and 36.7°F (2.6°C). In Hamilton, the average high-temperature is relatively the same as in December - a still cold 36.7°F (2.6°C). Weather in January »
February, the last month of the winter, in Hamilton, is also a wintry month, with average temperature ranging between max 41.7°F (5.4°C) and min 20.7°F (-6.3°C). In February, the average high-temperature is practically the same as in January - a still cold 41.7°F (5.4°C). Weather in February »

March, the first month of the spring, in Hamilton, is a cool month, with average temperature ranging between max 51.4°F (10.8°C) and min 27°F (-2.8°C). In March, the average high-temperature rises, from a wintry 41.7°F (5.4°C) in February, to a fresh 51.4°F (10.8°C). Weather in March »

April is a mild spring month in Hamilton, Montana, with temperature in the range of an average low of 32.7°F (0.4°C) and an average high of 59.2°F (15.1°C). In April, the average high-temperature slightly increases, from a cool 51.4°F (10.8°C) in March, to a moderate 59.2°F (15.1°C). Weather in April »

May, the last month of the spring, in Hamilton, is an enjoyable month, with average temperature fluctuating between 67.6°F (19.8°C) and 39.6°F (4.2°C). In May, the average high-temperature slightly increases, from a mild 59.2°F (15.1°C) in April, to a comfortable 67.6°F (19.8°C). Weather in May »

The first month of the summer, June, is a warm month in Hamilton, Montana, with average temperature varying between 75.2°F (24°C) and 45.7°F (7.6°C). In June, the average high-temperature marginally rises, from a comfortable 67.6°F (19.8°C) in May, to a warm 75.2°F (24°C). Weather in June »

July, the same as June, is another warm summer month in Hamilton, Montana, with average temperature ranging between min 50.2°F (10.1°C) and max 85.1°F (29.5°C). The warmest month is July, with an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 50.2°F (10.1°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Hamilton, Montana, with average temperature fluctuating between 83.7°F (28.7°C) and 48.6°F (9.2°C). In Hamilton, the average high-temperature in August is almost the same as in July - a still warm 83.7°F (28.7°C). Weather in August »

The first month of the autumn, September, is still a pleasant month in Hamilton, Montana, with average temperature varying between 40.8°F (4.9°C) and 72.9°F (22.7°C). In Hamilton, the average high-temperature in September drops, from a warm 83.7°F (28.7°C) in August, to an agreeable 72.9°F (22.7°C). Weather in September »

October, like September, is a moderate autumn month in Hamilton, Montana, with average temperature ranging between min 31.8°F (-0.1°C) and max 59.4°F (15.2°C). In Hamilton, Montana, the average high-temperature in October decreases, from a pleasant 72.9°F (22.7°C) in September, to a moderate 59.4°F (15.2°C). Weather in October »

November, the last month of the autumn, in Hamilton, is another chilly month, with average temperature ranging between min 24.3°F (-4.3°C) and max 44.2°F (6.8°C). In Hamilton, Montana, the average high-temperature declines considerably, from a moderate 59.4°F (15.2°C) in October, to a frosty 44.2°F (6.8°C). Weather in November »

The first month of the winter, December, is also a wintry month in Hamilton, Montana, with average temperature ranging between min 16.9°F (-8.4°C) and max 34°F (1.1°C). December is the coldest month, with an average high-temperature of 34°F (1.1°C) and an average low-temperature of 16.9°F (-8.4°C). Weather in December »

How many days does it rain in Hamilton?

In Hamilton, during the entire year, the rain falls for 121 days and collects up to 13.2" (334.1mm) of precipitation.

When does it snow in Hamilton?

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

How much does it snow in Hamilton?

In Hamilton, during the entire year, snow aggregates up to 14.1" (358.1mm).

What is the month with the least sunshine in Hamilton?

January, November and December, with an average of 3h of sunshine, are months with the least sunshine.

What are the months with the lowest UV index in Hamilton?

Months with the lowest UV index in Hamilton, Montana, are January, November and December, with an average maximum UV index of 1.

What is the rainiest month in Hamilton?

The month with the most rainfall in Hamilton is May when the rain falls for 11 days and typically aggregates up to 1.7" (42.4mm) of precipitation.

When are the longest days in Hamilton?

June has the longest days of the year in Hamilton, with an average of 15.7h of daylight.

What is the warmest month in Hamilton?

The warmest month in Hamilton is July, with an average high-temperature of 85.1°F (29.5°C) and an average low-temperature of 50.2°F (10.1°C).

What month has the most sunshine in Hamilton?

July has the most sunshine of the year in Hamilton, with an average of 13h of sunshine.

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

July is the month with the highest UV index in Hamilton, Montana, with an average maximum UV index of 9.

What is the driest month in Hamilton?

October is the month with the least rainfall in Hamilton. Rain falls for 7 days and accumulates 0.8" (19.3mm) of precipitation.

What is the coldest month in Hamilton?

December is the coldest month in Hamilton, Montana, with an average high-temperature of 34°F (1.1°C) and an average low-temperature of 16.9°F (-8.4°C).

When does it snow the most in Hamilton?

The month with the most snowfall in Hamilton, Montana, is December when 3.5" (88.9mm) of snow is typically aggregated.

What is the month with the shortest days in Hamilton?

December has the shortest days of the year in Hamilton, Montana, with an average of 8.7h of daylight.
Average temperature - Hamilton, MT
Average rainfall - Hamilton, MT
Average rainfall days - Hamilton, MT

Months with the highest number of rainy days are January and December (13 days).
Months with the lowest number of rainy days are July and October (7 days).

Average snowfall - Hamilton, MT
Average daylight / Average sunshine - Hamilton, MT