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

Monthly weather forecast and climate
Olney, MT

January, like December, is another subzero cold winter month in Olney, Montana, with average temperature fluctuating between 26.8°F (-2.9°C) and 13.6°F (-10.2°C). In Olney, the average high-temperature is relatively the same as in December - a still subzero cold 26.8°F (-2.9°C). Weather in January »

The last month of the winter, February, is another freezing cold month in Olney, Montana, with average temperature ranging between min 12.7°F (-10.7°C) and max 28°F (-2.2°C). In February, the average high-temperature is practically the same as in January - a still freezing cold 28°F (-2.2°C). Weather in February »

The first month of the spring, March, is a cold month in Olney, Montana, with average temperature varying between 36.1°F (2.3°C) and 20.8°F (-6.2°C). In March, the average high-temperature marginally rises, from a freezing cold 28°F (-2.2°C) in February, to a wintry 36.1°F (2.3°C). Weather in March »

April is a frosty spring month in Olney, Montana, with average temperature ranging between min 27.7°F (-2.4°C) and max 46.6°F (8.1°C). In April, the average high-temperature increases, from a cold 36.1°F (2.3°C) in March, to a frosty 46.6°F (8.1°C). Weather in April »

May, the last month of the spring, in Olney, is a mild month, with average temperature varying between 59.7°F (15.4°C) and 34.9°F (1.6°C). In Olney, Montana, the average high-temperature increases, from a chilly 46.6°F (8.1°C) in April, to a mild 59.7°F (15.4°C). Weather in May »

June, the first month of the summer, in Olney, is an enjoyable month, with average temperature varying between 66.6°F (19.2°C) and 40.6°F (4.8°C). In June, the average high-temperature marginally rises, from a moderate 59.7°F (15.4°C) in May, to an enjoyable 66.6°F (19.2°C). Weather in June »

July is a moderately hot summer month in Olney, Montana, with average temperature fluctuating between 44.8°F (7.1°C) and 78.1°F (25.6°C). July is the warmest month, with an average high-temperature of 78.1°F (25.6°C) and an average low-temperature of 44.8°F (7.1°C). Weather in July »

August, the last month of the summer, in Olney, is also a moderately hot month, with average temperature ranging between max 77.5°F (25.3°C) and min 45°F (7.2°C). In Olney, the average high-temperature is almost the same as in July - a still moderately hot 77.5°F (25.3°C). Weather in August »

September, the first month of the autumn, in Olney, is still a comfortable month, with average temperature fluctuating between 38.5°F (3.6°C) and 65.3°F (18.5°C). In Olney, Montana, the average high-temperature in September decreases, from a warm 77.5°F (25.3°C) in August, to a comfortable 65.3°F (18.5°C). Weather in September »

October, like September, is a frosty autumn month in Olney, Montana, with average temperature varying between 30.7°F (-0.7°C) and 48.7°F (9.3°C). In Olney, the average high-temperature in October declines considerably, from an enjoyable 65.3°F (18.5°C) in September, to a chilly 48.7°F (9.3°C). Weather in October »

The last month of the autumn, November, is also a wintry month in Olney, Montana, with temperature in the range of an average low of 22.6°F (-5.2°C) and an average high of 34.2°F (1.2°C). In Olney, the average high-temperature plummets, from a frosty 48.7°F (9.3°C) in October, to a wintry 34.2°F (1.2°C). Weather in November »

The first month of the winter, December, is also a subzero cold month in Olney, Montana, with average temperature ranging between min 13.3°F (-10.4°C) and max 25.5°F (-3.6°C). December is the coldest month, with an average high-temperature of 25.5°F (-3.6°C) and an average low-temperature of 13.3°F (-10.4°C). Weather in December »

What is the most humid month in Olney?

The most humid month is January, with an average relative humidity of 94%.

How many days does it rain in Olney?

In Olney, Montana, during the entire year, the rain falls for 136.9 days and collects up to 16.46" (418mm) of precipitation.

When does it snow in Olney?

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

How many days does it snow in Olney?

In Olney, Montana, during the entire year, snow falls for 107.6 days, and aggregates up to 51.42" (1306mm) of snow.

When does it snow the most in Olney?

The month with the most snowfall in Olney, Montana, is January when snow falls for 21.1 days and typically aggregates up to 11.02" (280mm) of snow.

What is the month with the least sunshine in Olney?

With an average of 3.4h of sunshine, January has the least sunshine of the year in Olney.

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

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

What is the rainiest month in Olney?

The month with the most rainfall in Olney, Montana, is March when the rain falls for 15.8 days and typically aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Olney?

June through August are months without snowfall in Olney, Montana.

When are the longest days in Olney?

The month with the longest days in Olney, Montana, is June, with an average of 16.1h of daylight.

What is the warmest month in Olney?

July is the warmest month in Olney, with an average high-temperature of 78.1°F (25.6°C) and an average low-temperature of 44.8°F (7.1°C).

What is the least humid month in Olney?

Months with the lowest humidity in Olney, Montana, are July and August, with an average relative humidity of 56%.

What is the month with the most sunshine in Olney?

Months with the most sunshine in Olney, Montana, are July and August, with an average of 11.7h of sunshine.

When is the highest UV index in Olney?

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

What is the driest month in Olney?

The month with the least rainfall in Olney is August when the rain falls for 6.4 days and typically collects 0.51" (13mm) of precipitation.

What is the coldest month in Olney?

December is the coldest month in Olney, Montana, with an average high-temperature of 25.5°F (-3.6°C) and an average low-temperature of 13.3°F (-10.4°C).

What is the month with the shortest days in Olney?

December has the shortest days of the year in Olney, Montana, with an average of 8.4h of daylight.
Average temperature - Olney, MT
Average humidity - Olney, MT
Average rainfall - Olney, MT
Average rainfall days - Olney, MT
Average snowfall - Olney, MT
Average snowfall days - Olney, MT

The month with the highest number of snowfall days is December (21.4 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Olney, 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: 11.7h).
The month with the least sunshine is January (Average sunshine: 3.4h).