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

Monthly weather forecast and climate
Dayton, MT

January, like December, is a freezing cold winter month in Dayton, Montana, with average temperature varying between 28.6°F (-1.9°C) and 16.2°F (-8.8°C). In January, the average high-temperature is almost the same as in December - a still freezing cold 28.6°F (-1.9°C). Weather in January »

February, the last month of the winter, in Dayton, is also a subzero cold month, with average temperature fluctuating between 16.3°F (-8.7°C) and 29.7°F (-1.3°C). In February, the average high-temperature is essentially the same as in January - a still subzero cold 29.7°F (-1.3°C). Weather in February »

March, the first month of the spring, in Dayton, is a cold month, with average temperature ranging between min 23.4°F (-4.8°C) and max 38.3°F (3.5°C). In March, the average high-temperature marginally rises, from a subzero cold 29.7°F (-1.3°C) in February, to a wintry 38.3°F (3.5°C). Weather in March »

April in Dayton, Montana, is a chilly spring month, with average temperature ranging between min 29.7°F (-1.3°C) and max 47.8°F (8.8°C). In April, the average high-temperature rises, from a wintry 38.3°F (3.5°C) in March, to a frosty 47.8°F (8.8°C). Weather in April »

May, the last month of the spring, in Dayton, is a comfortable month, with average temperature varying between 60.8°F (16°C) and 36.7°F (2.6°C). In May, the average high-temperature increases, from a chilly 47.8°F (8.8°C) in April, to a comfortable 60.8°F (16°C). Weather in May »

The first month of the summer, June, is a pleasant month in Dayton, Montana, with average temperature fluctuating between 68°F (20°C) and 42.8°F (6°C). In Dayton, the average high-temperature in June marginally rises, from an enjoyable 60.8°F (16°C) in May, to an agreeable 68°F (20°C). Weather in June »

July in Dayton, Montana, is a warm summer month, with average temperature ranging between max 79.3°F (26.3°C) and min 48.4°F (9.1°C). July is the warmest month, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 48.4°F (9.1°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Dayton, Montana, with average temperature varying between 48.2°F (9°C) and 78.4°F (25.8°C). In Dayton, the average high-temperature is relatively the same as in July - a still warm 78.4°F (25.8°C). Weather in August »

The first month of the autumn, September, is still a comfortable month in Dayton, Montana, with average temperature fluctuating between 67.1°F (19.5°C) and 41.5°F (5.3°C). In Dayton, the average high-temperature in September decreases, from a moderately hot 78.4°F (25.8°C) in August, to an enjoyable 67.1°F (19.5°C). Weather in September »

October, like September, in Dayton, Montana, is another fresh autumn month, with average temperature varying between 32.7°F (0.4°C) and 50.4°F (10.2°C). In October, the average high-temperature plummets, from a comfortable 67.1°F (19.5°C) in September, to a cool 50.4°F (10.2°C). Weather in October »

November, the last month of the autumn, in Dayton, is another cold month, with average temperature fluctuating between 24.1°F (-4.4°C) and 36°F (2.2°C). In November, the average high-temperature drops, from a cool 50.4°F (10.2°C) in October, to a cold 36°F (2.2°C). Weather in November »

The first month of the winter, December, is still a freezing cold month in Dayton, Montana, with average temperature varying between 27.1°F (-2.7°C) and 16.2°F (-8.8°C). December is the coldest month, with an average high-temperature of 27.1°F (-2.7°C) and an average low-temperature of 16.2°F (-8.8°C). Weather in December »

What is the most humid month in Dayton?

January is the most humid month, with an average relative humidity of 93%.

How much does it rain in Dayton?

Throughout the year, in Dayton, Montana, there are 129.8 rainfall days, and 16.42" (417mm) of precipitation is accumulated.

When does it snow in Dayton?

Months with snowfall in Dayton are January through June, September through December.

How much does it snow in Dayton?

In Dayton, Montana, during the entire year, snow falls for 117.4 days, and aggregates up to 58.62" (1489mm) of snow.

What is the month with the least sunshine in Dayton?

January has the least sunshine of the year, with an average of 3.5h of sunshine.

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

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

What is the rainiest month in Dayton?

The month with the most rainfall in Dayton, Montana, is June when the rain falls for 14.9 days and typically aggregates up to 1.89" (48mm) of precipitation.

When are the longest days in Dayton?

The month with the longest days in Dayton is June, with an average of 16h of daylight.

What is the warmest month in Dayton?

The warmest month in Dayton is July, with an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 48.4°F (9.1°C).

What is the least humid month in Dayton?

July and August, with an average relative humidity of 52%, are the least humid months in Dayton, Montana.

What is the driest month in Dayton?

July is the month with the least rainfall in Dayton, Montana. Rain falls for 8 days and accumulates 0.59" (15mm) of precipitation.

When it does not snow in Dayton?

In Dayton snow does not fall in July and August.

What month has the most sunshine in Dayton?

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

When is the highest UV index in Dayton?

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

What is the coldest month in Dayton?

December is the coldest month in Dayton, with an average high-temperature of 27.1°F (-2.7°C) and an average low-temperature of 16.2°F (-8.8°C).

When does it snow the most in Dayton?

December is the month with the most snowfall. Snow falls for 21.7 days and accumulates 12.36" (314mm) of snow.

What is the month with the shortest days in Dayton?

December has the shortest days of the year, with an average of 8.5h of daylight.
Average temperature - Dayton, MT
Average humidity - Dayton, MT
Average rainfall - Dayton, MT
Average rainfall days - Dayton, MT

The month with the highest number of rainy days is April (15.9 days).
The month with the least rainy days is December (6.5 days).

Average snowfall days - Dayton, MT

The month with the highest number of snowfall days is January (22.3 days).
Months with the least snowfall days are July and August (0 days).

Average daylight / Average sunshine - Dayton, MT

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.5h).

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is January (Average sunshine: 3.5h).