Monthly weather forecast and climate
Harlowton, MT

Weather in January

January, the same as December, in Harlowton, Montana, is a freezing cold winter month, with average temperature fluctuating between 31.1°F (-0.5°C) and 18°F (-7.8°C). In January, the average high-temperature is essentially the same as in December - a still subzero cold 31.1°F (-0.5°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Harlowton, Montana, with average temperature varying between 30.4°F (-0.9°C) and 16.3°F (-8.7°C). In February, the average high-temperature is practically the same as in January - a still subzero cold 30.4°F (-0.9°C). Weather in February »

Weather in March

March, the first month of the spring, in Harlowton, is a cold month, with average temperature fluctuating between 41°F (5°C) and 25.3°F (-3.7°C). In March, the average high-temperature increases, from a freezing cold 30.4°F (-0.9°C) in February, to a cold 41°F (5°C). Weather in March »

Weather in April

April in Harlowton, Montana, is a frosty spring month, with average temperature fluctuating between 31.8°F (-0.1°C) and 49.3°F (9.6°C). In April, the average high-temperature marginally rises, from a wintry 41°F (5°C) in March, to a frosty 49.3°F (9.6°C). Weather in April »

Weather in May

May, the last month of the spring, in Harlowton, is a mild month, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 59.4°F (15.2°C). In May, the average high-temperature increases, from a frosty 49.3°F (9.6°C) in April, to a moderate 59.4°F (15.2°C). Weather in May »

Weather in June

June, the first month of the summer, in Harlowton, is a pleasant month, with average temperature fluctuating between 47.7°F (8.7°C) and 70°F (21.1°C). In Harlowton, the average high-temperature rises, from a mild 59.4°F (15.2°C) in May, to a pleasant 70°F (21.1°C). Weather in June »

Weather in July

July is a warm summer month in Harlowton, Montana, with average temperature ranging between min 54.3°F (12.4°C) and max 80.1°F (26.7°C). July is the warmest month, with an average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 54.3°F (12.4°C). Weather in July »

Weather in August

August, the last month of the summer, in Harlowton, is another warm month, with average temperature varying between 78.3°F (25.7°C) and 54.3°F (12.4°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 78.3°F (25.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Harlowton, Montana, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 68.5°F (20.3°C). In Harlowton, Montana, the average high-temperature drops, from a warm 78.3°F (25.7°C) in August, to an agreeable 68.5°F (20.3°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Harlowton, Montana, with average temperature fluctuating between 52.5°F (11.4°C) and 34.9°F (1.6°C). In Harlowton, the average high-temperature plummets, from a pleasant 68.5°F (20.3°C) in September, to a cool 52.5°F (11.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Harlowton, Montana, with average temperature fluctuating between 39.6°F (4.2°C) and 25.2°F (-3.8°C). In Harlowton, the average high-temperature drops, from a fresh 52.5°F (11.4°C) in October, to a wintry 39.6°F (4.2°C). Weather in November »

Weather in December

December, the first month of the winter, in Harlowton, is also a subzero cold month, with average temperature fluctuating between 29.3°F (-1.5°C) and 16.7°F (-8.5°C). December is the coldest month, with an average high-temperature of 29.3°F (-1.5°C) and an average low-temperature of 16.7°F (-8.5°C). Weather in December »
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FAQ

What is the most humid month in Harlowton?

With an average relative humidity of 78%, January is the most humid month.

How much does it rain in Harlowton?

In Harlowton, during the entire year, the rain falls for 128.6 days and collects up to 12.8" (325mm) of precipitation.

When does it snow in Harlowton?

January through May, September through December are months with snowfall in Harlowton, Montana.

How many days does it snow in Harlowton?

Throughout the year, there are 72.8 snowfall days, and 33.5" (851mm) of snow is accumulated.

When is the lowest UV index in Harlowton?

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

What is the month with the least sunshine in Harlowton?

The month with the least sunshine is February, with an average of 6.4h of sunshine.

When does it snow the most in Harlowton?

April is the month with the most snowfall in Harlowton, Montana. Snow falls for 8.6 days and accumulates 6.61" (168mm) of snow.

What is the wettest month in Harlowton?

May is the month with the most rainfall in Harlowton. Rain falls for 18.7 days and accumulates 2.4" (61mm) of precipitation.

When it does not snow in Harlowton?

In Harlowton, Montana, snow does not fall in June through August.

When are the longest days in Harlowton?

June has the longest days of the year in Harlowton, with an average of 15.8h of daylight.

What is the warmest month in Harlowton?

The warmest month is July, with an average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 54.3°F (12.4°C).

What month has the most sunshine in Harlowton?

July has the most sunshine of the year, with an average of 11.8h of sunshine.

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

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

What is the least humid month in Harlowton?

With an average relative humidity of 45%, August is the least humid month.

What is the coldest month in Harlowton?

December is the coldest month in Harlowton, Montana, with an average high-temperature of 29.3°F (-1.5°C) and an average low-temperature of 16.7°F (-8.5°C).

What is the driest month in Harlowton?

The month with the least rainfall in Harlowton is December when the rain falls for 7.2 days and typically collects 0.47" (12mm) of precipitation.

What is the month with the shortest days in Harlowton?

The month with the shortest days in Harlowton is December, with an average of 8.7h of daylight.

Average temperature
Harlowton, MT

Average temperature - Harlowton, MT

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is December (29.3°F).

Months with the highest average low temperature are July and August (54.3°F).
The coldest month (with the lowest average low temperature) is February (16.3°F).

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Average pressure
Harlowton, MT

Average pressure - Harlowton, MT

Months with the highest atmospheric pressure are January and December (30.14").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed
Harlowton, MT

Average wind speed - Harlowton, MT

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average rainfall
Harlowton, MT

Average rainfall - Harlowton, MT

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is December (0.47").

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Average rainfall days
Harlowton, MT

Average rainfall days - Harlowton, MT

The month with the highest number of rainy days is May (18.7 days).
Months with the least rainy days are January and December (7.2 days).

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Average snowfall
Harlowton, MT

Average snowfall - Harlowton, MT

The month with the highest snowfall is April (6.61").
Months with the least snowfall are June, July and August (0").

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Average snowfall days
Harlowton, MT

Average snowfall days - Harlowton, MT

The month with the highest number of snowfall days is February (14.2 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Harlowton, MT

Average daylight / Average sunshine - Harlowton, MT

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.7h).

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.4h).

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Average sunshine days
Harlowton, MT

Average sunshine days - Harlowton, MT

The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is April (9 days).

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Average UV index
Harlowton, MT

Average UV index - Harlowton, MT

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average visibility
Harlowton, MT

Average visibility - Harlowton, MT

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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