Climate and monthly weather forecast
Swan Valley, ID

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Weather in January

January, like December, is a freezing cold winter month in Swan Valley, Idaho, with an average temperature varying between 7.3°F (-13.7°C) and 26.1°F (-3.3°C). At the start of January, Swan Valley's average high-temperature reaches a still subzero cold 26.1°F (-3.3°C), subtly different from the preceding month. Weather in January »

Weather in February

February, the last month of the winter in Swan Valley, is another freezing cold month, with an average temperature varying between 9.9°F (-12.3°C) and 27.3°F (-2.6°C). Swan Valley registers an average high-temperature of a still subzero cold 27.3°F (-2.6°C) at the commencement of February, closely related to the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is an icy month in Swan Valley, Idaho, with an average temperature varying between 16.9°F (-8.4°C) and 33.8°F (1°C). March showcases a minor temperature ascent, adjusting from February's freezing cold 27.3°F (-2.6°C) to a wintry 33.8°F (1°C). Weather in March »

Weather in April

April, the same as March, is a wintry spring month in Swan Valley, Idaho, with an average temperature fluctuating between 22.8°F (-5.1°C) and 42.1°F (5.6°C). The commencement of April sees a minor shift in the average high-temperature, moving from an icy 33.8°F (1°C) in March to a still wintry 42.1°F (5.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a mild month in Swan Valley, Idaho, with an average temperature varying between 31.3°F (-0.4°C) and 55.4°F (13°C). May brings a temperature change, with average high-temperatures moving from April's icy 42.1°F (5.6°C) to a refreshing 55.4°F (13°C). Weather in May »

Weather in June

The first month of the summer, June, is a refreshing month in Swan Valley, Idaho, with an average temperature varying between 37.9°F (3.3°C) and 66.6°F (19.2°C). June brings a temperature increase, with average high-temperatures moving from May's mild 55.4°F (13°C) to a still refreshing 66.6°F (19.2°C). Weather in June »

Weather in July

July in Swan Valley, Idaho, is a warm summer month, with an average temperature fluctuating between 77.5°F (25.3°C) and 45.3°F (7.4°C). July is the warmest month, with an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 45.3°F (7.4°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Swan Valley, Idaho, with an average temperature ranging between max 76.5°F (24.7°C) and min 45.3°F (7.4°C). Swan Valley experiences an average high-temperature of a still warm 76.5°F (24.7°C) in August, marking an insignificant shift from 77.5°F (25.3°C) in July. Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Swan Valley, Idaho, with an average temperature varying between 66.6°F (19.2°C) and 40.1°F (4.5°C). A moderate decline in the average high-temperature is seen during September, decreasing from a moderately hot 76.5°F (24.7°C) in August to a comfortable 66.6°F (19.2°C). Weather in September »

Weather in October

October, the same as September, in Swan Valley, Idaho, is a frosty autumn month, with an average temperature varying between 29.1°F (-1.6°C) and 48.9°F (9.4°C). Swan Valley in October showcases a distinct temperature shift, moving from an average high of a refreshing 66.6°F (19.2°C) in September to a chilly 48.9°F (9.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Swan Valley, is another cold month, with an average temperature fluctuating between 35.1°F (1.7°C) and 18.5°F (-7.5°C). The start of November involves a temperature drop, moving from a chilly 48.9°F (9.4°C) in October to an icy 35.1°F (1.7°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Swan Valley, Idaho, with an average temperature fluctuating between 8.8°F (-12.9°C) and 24.3°F (-4.3°C). The month of December, characterized by an average high of 24.3°F (-4.3°C) and a low of 8.8°F (-12.9°C), is recognized as the coldest. Weather in December »
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Frequently asked questions

How many days does it rain in Swan Valley?

Throughout the year, there are 127 rainfall days, and 24.29" (617mm) of precipitation is accumulated.

When does it snow in Swan Valley?

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

How much does it snow in Swan Valley?

In Swan Valley, Idaho, during the entire year, snow falls for 126.6 days and aggregates up to 110.28" (2801mm) of snow.

What is the month with the lowest UV index in Swan Valley?

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Swan Valley.

What is the most humid month in Swan Valley?

February is the most humid month in Swan Valley, Idaho, with an average relative humidity of 94%.

What is the wettest month in Swan Valley?

The month with the most rainfall in Swan Valley, Idaho, is February, when the rain falls for 5.6 days and typically aggregates up to 2.91" (74mm) of precipitation.

What is the snowiest month in Swan Valley?

The month with the most snowfall in Swan Valley, Idaho, is February, when snow falls for 22.3 days and typically aggregates up to 22.91" (582mm) of snow.

What is the month with the least sunshine in Swan Valley?

February has the least sunshine of the year in Swan Valley, Idaho, with an average of 4h of sunshine.

When is Daylight Saving Time (DST) in Swan Valley?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Swan Valley, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

When are the longest days in Swan Valley?

With an average of 15h and 24min of daylight, June has the longest days of the year in Swan Valley, Idaho.

What part of the year is the hottest in Swan Valley?

The warmest time of the year is July, with temperatures averaging a high of 77.5°F (25.3°C) and a low of 45.3°F (7.4°C).

What is the driest month in Swan Valley?

July is the month with the least rainfall in Swan Valley. Rain falls for 10.4 days and accumulates 0.91" (23mm) of precipitation.

When it does not snow in Swan Valley?

In Swan Valley, snow does not fall in July and August.

What month has the most sunshine in Swan Valley?

The month with the most sunshine in Swan Valley, Idaho, is July, with an average of 11.9h of sunshine.

When is the highest UV index in Swan Valley?

With an average maximum UV index of 5, July is the month with the highest UV index in Swan Valley.

What is the least humid month in Swan Valley?

August is the least humid month in Swan Valley, Idaho, with an average relative humidity of 46%.

What is the coldest month in Swan Valley?

December, with average temperatures reaching a high of 24.3°F (-4.3°C) and a low of 8.8°F (-12.9°C), is the coldest month in Swan Valley.

What is the month with the shortest days in Swan Valley?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

Average temperature
Swan Valley, ID

Average temperature - Swan Valley, ID

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is December (24.3°F).

The months with the highest average low temperature are July and August (45.3°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).

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Average pressure
Swan Valley, ID

Average pressure - Swan Valley, ID

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Swan Valley, ID

Average wind speed - Swan Valley, ID

The windiest month (with the highest average wind speed) is June (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).

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Average humidity
Swan Valley, ID

Average humidity - Swan Valley, ID

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (46%).

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Average rainfall
Swan Valley, ID

Average rainfall - Swan Valley, ID

The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.91").

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Average rainfall days
Swan Valley, ID

Average rainfall days - Swan Valley, ID

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (4.6 days).

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Average snowfall
Swan Valley, ID

Average snowfall - Swan Valley, ID

The month with the highest snowfall is February (22.91").
The months with the least snowfall are July and August (0").

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Average snowfall days
Swan Valley, ID

Average snowfall days - Swan Valley, ID

The months with the highest number of snowfall days are February and December (22.3 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight / Average sunshine
Swan Valley, ID

Average daylight / Average sunshine - Swan Valley, ID

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

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Average sunshine days
Swan Valley, ID

Average sunshine days - Swan Valley, ID

The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is April (5.3 days).

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Average UV index
Swan Valley, ID

Average UV index - Swan Valley, ID

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

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Average visibility
Swan Valley, ID

Average visibility - Swan Valley, ID

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (3mi).

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Swan Valley, Idaho, USA

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