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

Monthly weather forecast and climate
Kirby, MT

January, the same as December, in Kirby, Montana, is another subzero cold winter month, with temperature in the range of an average low of 16.2°F (-8.8°C) and an average high of 31.8°F (-0.1°C). In January, the average high-temperature is essentially the same as in December - a still freezing cold 31.8°F (-0.1°C). Weather in January »

February, the last month of the winter, in Kirby, is also a subzero cold month, with average temperature varying between 31.6°F (-0.2°C) and 16.2°F (-8.8°C). In February, the average high-temperature is almost the same as in January - a still subzero cold 31.6°F (-0.2°C). Weather in February »

The first month of the spring, March, is a frosty month in Kirby, Montana, with average temperature ranging between max 45°F (7.2°C) and min 28.2°F (-2.1°C). In Kirby, Montana, the average high-temperature rises, from a subzero cold 31.6°F (-0.2°C) in February, to a chilly 45°F (7.2°C). Weather in March »

April is a cool spring month in Kirby, Montana, with average temperature fluctuating between 34.2°F (1.2°C) and 53.1°F (11.7°C). In Kirby, the average high-temperature in April marginally rises, from a frosty 45°F (7.2°C) in March, to a cool 53.1°F (11.7°C). Weather in April »

May, the last month of the spring, in Kirby, is a comfortable month, with average temperature fluctuating between 43.5°F (6.4°C) and 63.7°F (17.6°C). In Kirby, the average high-temperature increases, from a cool 53.1°F (11.7°C) in April, to a comfortable 63.7°F (17.6°C). Weather in May »

June, the first month of the summer, in Kirby, is a moderately hot month, with average temperature ranging between max 75.7°F (24.3°C) and min 52.9°F (11.6°C). In June, the average high-temperature increases, from an enjoyable 63.7°F (17.6°C) in May, to a warm 75.7°F (24.3°C). Weather in June »

July, the same as June, is another warm summer month in Kirby, Montana, with average temperature ranging between min 61.5°F (16.4°C) and max 85.5°F (29.7°C). The warmest month is July, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 61.5°F (16.4°C). In July, the average heat index is calculated to 85.5°F (29.7°C). Weather in July »

August, the last month of the summer, in Kirby, is another warm month, with average temperature fluctuating between 60.4°F (15.8°C) and 83.7°F (28.7°C). In Kirby, the average high-temperature is relatively the same as in July - a still moderately hot 83.7°F (28.7°C). Weather in August »

September, the first month of the autumn, in Kirby, is still a warm month, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 52.7°F (11.5°C). In September, the average high-temperature decreases, from a warm 83.7°F (28.7°C) in August, to a still moderately hot 74.1°F (23.4°C). Weather in September »

October, the same as September, in Kirby, Montana, is another mild autumn month, with average temperature ranging between max 56.8°F (13.8°C) and min 39°F (3.9°C). In Kirby, Montana, the average high-temperature plummets, from a warm 74.1°F (23.4°C) in September, to a moderate 56.8°F (13.8°C). Weather in October »

The last month of the autumn, November, is another chilly month in Kirby, Montana, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 27.1°F (-2.7°C). In November, the average high-temperature decreases, from a mild 56.8°F (13.8°C) in October, to a frosty 43.3°F (6.3°C). Weather in November »

December, the first month of the winter, in Kirby, is also a subzero cold month, with average temperature ranging between max 31.1°F (-0.5°C) and min 16.7°F (-8.5°C). December is the coldest month, with an average high-temperature of 31.1°F (-0.5°C) and an average low-temperature of 16.7°F (-8.5°C). Weather in December »

What are the most humid months in Kirby?

Months with the highest humidity are January and February, with an average relative humidity of 79%.

How many days does it rain in Kirby?

In Kirby, during the entire year, the rain falls for 127.6 days and collects up to 14.25" (362mm) of precipitation.

When does it snow in Kirby?

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

How much does it snow in Kirby?

In Kirby, during the entire year, snow falls for 65.3 days, and aggregates up to 28.82" (732mm) of snow.

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

Months with the lowest UV index in Kirby are January through March, November and December, with an average maximum UV index of 2.

What is the snowiest month in Kirby?

February is the month with the most snowfall in Kirby. Snow falls for 14.3 days and accumulates 5.2" (132mm) of snow.

What is the month with the least sunshine in Kirby?

February has the least sunshine of the year, with an average of 5.7h of sunshine.

What is the rainiest month in Kirby?

The month with the most rainfall is May when the rain falls for 18 days and typically aggregates up to 2.64" (67mm) of precipitation.

When it does not snow in Kirby?

June through August are months without snowfall.

When are the longest days in Kirby?

With an average of 15.6h of daylight, June has the longest days of the year in Kirby.

What is the warmest month in Kirby?

The warmest month in Kirby, Montana, is July, with an average high-temperature of 85.5°F (29.7°C) and an average low-temperature of 61.5°F (16.4°C).

What is the month with the most sunshine in Kirby?

Months with the most sunshine are July and August, with an average of 11.9h of sunshine.

When is the highest UV index in Kirby?

With an average maximum UV index of 7, July is the month with the highest UV index in Kirby.

What is the least humid month in Kirby?

August is the least humid month in Kirby, with an average relative humidity of 40%.

What is the coldest month in Kirby?

With an average high-temperature of 31.1°F (-0.5°C) and an average low-temperature of 16.7°F (-8.5°C), December is the coldest month in Kirby.

What is the driest month in Kirby?

December is the month with the least rainfall in Kirby, Montana. Rain falls for 6.8 days and accumulates 0.67" (17mm) of precipitation.

What is the month with the shortest days in Kirby?

December has the shortest days of the year in Kirby, Montana, with an average of 8.8h of daylight.
Average temperature - Kirby, MT
Average humidity - Kirby, MT
Average rainfall - Kirby, MT
Average rainfall days - Kirby, MT
Average snowfall - Kirby, MT
Average snowfall days - Kirby, MT

The month with the highest number of snowfall days is February (14.3 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Kirby, MT

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

Months with the most sunshine are July and August (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 5.7h).

Average UV index - Kirby, MT