Monthly weather forecast and climate
Dell, MT

Weather in January

January, the same as December, in Dell, Montana, is another subzero cold winter month, with average temperature fluctuating between 27°F (-2.8°C) and 10.8°F (-11.8°C). In January, the average high-temperature is almost the same as in December - a still subzero cold 27°F (-2.8°C). Weather in January »

Weather in February

February, the last month of the winter, in Dell, is another freezing cold month, with average temperature varying between 27.1°F (-2.7°C) and 10.4°F (-12°C). In Dell, the average high-temperature is relatively the same as in January - a still freezing cold 27.1°F (-2.7°C). Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Dell, Montana, with average temperature fluctuating between 34.3°F (1.3°C) and 19°F (-7.2°C). In Dell, the average high-temperature marginally rises, from a freezing cold 27.1°F (-2.7°C) in February, to a wintry 34.3°F (1.3°C). Weather in March »

Weather in April

April in Dell, Montana, is a frosty spring month, with average temperature fluctuating between 44.1°F (6.7°C) and 26.4°F (-3.1°C). In April, the average high-temperature rises, from a cold 34.3°F (1.3°C) in March, to a chilly 44.1°F (6.7°C). Weather in April »

Weather in May

May, the last month of the spring, in Dell, is a moderate month, with average temperature varying between 34.7°F (1.5°C) and 55.6°F (13.1°C). In Dell, Montana, the average high-temperature in May rises, from a frosty 44.1°F (6.7°C) in April, to a mild 55.6°F (13.1°C). Weather in May »

Weather in June

The first month of the summer, June, is an enjoyable month in Dell, Montana, with average temperature fluctuating between 65.8°F (18.8°C) and 40.6°F (4.8°C). In June, the average high-temperature rises, from a moderate 55.6°F (13.1°C) in May, to an enjoyable 65.8°F (18.8°C). Weather in June »

Weather in July

July is a warm summer month in Dell, Montana, with average temperature ranging between min 47.1°F (8.4°C) and max 76.6°F (24.8°C). With an average high-temperature of 76.6°F (24.8°C) and an average low-temperature of 47.1°F (8.4°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer, in Dell, is another warm month, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 75.4°F (24.1°C). In Dell, the average high-temperature in August is practically the same as in July - a still warm 75.4°F (24.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Dell, Montana, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 42.1°F (5.6°C). In September, the average high-temperature decreases, from a warm 75.4°F (24.1°C) in August, to a comfortable 65.8°F (18.8°C). Weather in September »

Weather in October

October, like September, is another chilly autumn month in Dell, Montana, with temperature in the range of an average low of 31.3°F (-0.4°C) and an average high of 49.1°F (9.5°C). In Dell, Montana, the average high-temperature significantly decreases, from an enjoyable 65.8°F (18.8°C) in September, to a frosty 49.1°F (9.5°C). Weather in October »

Weather in November

November, the last month of the autumn, in Dell, is another cold month, with average temperature ranging between min 20.1°F (-6.6°C) and max 34.9°F (1.6°C). In Dell, the average high-temperature drops, from a chilly 49.1°F (9.5°C) in October, to a wintry 34.9°F (1.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Dell, Montana, with average temperature fluctuating between 24.3°F (-4.3°C) and 9.9°F (-12.3°C). December is the coldest month, with an average high-temperature of 24.3°F (-4.3°C) and an average low-temperature of 9.9°F (-12.3°C). Weather in December »
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FAQ

What are the most humid months in Dell?

January and February, with an average relative humidity of 86%, are most humid months in Dell, Montana.

How many days does it rain in Dell?

Throughout the year, in Dell, Montana, there are 103.2 rainfall days, and 9.84" (250mm) of precipitation is accumulated.

What is the driest month in Dell?

The month with the least rainfall in Dell, Montana, is January when the rain falls for 4.6 days and typically collects 0.43" (11mm) of precipitation.

When does it snow in Dell?

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

How many days does it snow in Dell?

Throughout the year, in Dell, Montana, there are 81.9 snowfall days, and 31.65" (804mm) of snow is accumulated.

What is the month with the least sunshine in Dell?

January has the least sunshine of the year in Dell, with an average of 5.9h of sunshine.

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

With an average maximum UV index of 1, February is the month with the lowest UV index in Dell, Montana.

What is the snowiest month in Dell?

April is the month with the most snowfall in Dell, Montana. Snow falls for 10.8 days and accumulates 4.96" (126mm) of snow.

What is the rainiest month in Dell?

June is the month with the most rainfall in Dell. Rain falls for 13.5 days and accumulates 1.73" (44mm) of precipitation.

When are the longest days in Dell?

The month with the longest days in Dell, Montana, is June, with an average of 15.5h of daylight.

What is the warmest month in Dell?

The warmest month in Dell, Montana, is July, with an average high-temperature of 76.6°F (24.8°C) and an average low-temperature of 47.1°F (8.4°C).

What is the least humid month in Dell?

Months with the lowest humidity in Dell are July and August, with an average relative humidity of 43%.

When it does not snow in Dell?

July and August are months without snowfall in Dell.

What month has the most sunshine in Dell?

July has the most sunshine of the year in Dell, with an average of 11.9h of sunshine.

When is the highest UV index in Dell?

The month with the highest UV index is July, with an average maximum UV index of 5.

What is the coldest month in Dell?

The coldest month in Dell, Montana, is December, with an average high-temperature of 24.3°F (-4.3°C) and an average low-temperature of 9.9°F (-12.3°C).

What is the month with the shortest days in Dell?

The month with the shortest days in Dell is December, with an average of 8.9h of daylight.

Average temperature
Dell, MT

Average temperature - Dell, MT

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is December (24.3°F).

The month with the highest average low temperature is July (47.1°F).
The coldest month (with the lowest average low temperature) is December (9.9°F).

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Average pressure
Dell, MT

Average pressure - Dell, MT

The month with the highest atmospheric pressure is January (30.25").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed
Dell, MT

Average wind speed - Dell, MT

The windiest months (with the highest average wind speed) are November and December (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity
Dell, MT

Average humidity - Dell, MT

Months with the highest relative humidity are January and February (86%).
Months with the lowest relative humidity are July and August (43%).

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Average rainfall
Dell, MT

Average rainfall - Dell, MT

The wettest month (with the highest rainfall) is June (1.73").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days
Dell, MT

Average rainfall days - Dell, MT

The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is January (4.6 days).

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Average snowfall days
Dell, MT

Average snowfall days - Dell, MT

The month with the highest number of snowfall days is February (13.3 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight / Average sunshine
Dell, MT

Average daylight / Average sunshine - Dell, MT

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is January (Average sunshine: 5.9h).

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Average sunshine days
Dell, MT

Average sunshine days - Dell, MT

The month with the most sunshine days is July (20.7 days).
The month with the least sunshine days is April (10.7 days).

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Average visibility
Dell, MT

Average visibility - Dell, MT

Months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is February (4mi).

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