Climate and monthly weather forecast
Letha, ID

Weather in January

January, the same as December, is another cold winter month in Letha, Idaho, with an average temperature ranging between min 23.5°F (-4.7°C) and max 36.1°F (2.3°C). In Letha, the average high-temperature in January is relatively the same as in December - a still wintry 36.1°F (2.3°C). Weather in January »

Weather in February

February, the last month of the winter in Letha, is also a wintry month, with temperature in the range of an average high of 41.5°F (5.3°C) and an average low of 28.6°F (-1.9°C). In Letha, the average high-temperature in February marginally rises from 36.1°F (2.3°C) in January to a still wintry 41.5°F (5.3°C). Weather in February »

Weather in March

March, the first month of the spring in Letha, is a cool month, with an average temperature ranging between max 51.1°F (10.6°C) and min 35.1°F (1.7°C). In Letha, the average high-temperature in March rises from a cold 41.5°F (5.3°C) in February to a fresh 51.1°F (10.6°C). Weather in March »

Weather in April

April is a moderate spring month in Letha, Idaho, with an average temperature varying between 58.8°F (14.9°C) and 38.8°F (3.8°C). In Letha, the average high-temperature in April marginally rises from a cool 51.1°F (10.6°C) in March to a moderate 58.8°F (14.9°C). Weather in April »

Weather in May

May, the last month of the spring in Letha, is a pleasant month, with an average temperature varying between 45°F (7.2°C) and 69.4°F (20.8°C). In May, the average high-temperature increases from a mild 58.8°F (14.9°C) in April to an agreeable 69.4°F (20.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Letha, Idaho, with temperature in the range of an average low of 52°F (11.1°C) and an average high of 77.5°F (25.3°C). In Letha, the average high-temperature in June slightly increases from an agreeable 69.4°F (20.8°C) in May to a moderately hot 77.5°F (25.3°C). Weather in June »

Weather in July

July in Letha, Idaho, is a tropical summer month, with an average temperature ranging between max 90°F (32.2°C) and min 59.9°F (15.5°C). The warmest month is July, with an average high-temperature of 90°F (32.2°C) and an average low-temperature of 59.9°F (15.5°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Letha, Idaho, with an average temperature varying between 60.3°F (15.7°C) and 89.2°F (31.8°C). In August, the average high-temperature is essentially the same as in July - a still hot 89.2°F (31.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Letha, Idaho, with an average temperature varying between 78.1°F (25.6°C) and 53.4°F (11.9°C). In September, the average high-temperature decreases from a tropical 89.2°F (31.8°C) in August to a warm 78.1°F (25.6°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Letha, Idaho, with temperature in the range of an average low of 42.6°F (5.9°C) and an average high of 60.8°F (16°C). In October, the average high-temperature plummets from a moderately hot 78.1°F (25.6°C) in September to an enjoyable 60.8°F (16°C). Weather in October »

Weather in November

November, the last month of the autumn in Letha, is another chilly month, with temperature in the range of an average high of 47.3°F (8.5°C) and an average low of 31.8°F (-0.1°C). In Letha, the average high-temperature in November decreases from a comfortable 60.8°F (16°C) in October to a chilly 47.3°F (8.5°C). Weather in November »

Weather in December

December, the first month of the winter in Letha, is also a wintry month, with an average temperature ranging between min 22.8°F (-5.1°C) and max 34.9°F (1.6°C). The coldest month is December, with an average high-temperature of 34.9°F (1.6°C) and an average low-temperature of 22.8°F (-5.1°C). Weather in December »
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FAQ

What is the most humid month in Letha?

With an average relative humidity of 82%, January is the most humid month.

How many days does it rain in Letha?

Throughout the year, there are 91.7 rainfall days, and 10.28" (261mm) of precipitation is accumulated.

When does it snow in Letha?

January through April, November and December are months with snowfall in Letha, Idaho.

How much does it snow in Letha?

Throughout the year, in Letha, there are 22.2 snowfall days, and 12.95" (329mm) of snow is accumulated.

When is the lowest UV index in Letha?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the rainiest month in Letha?

March is the month with the most rainfall. Rain falls for 13.7 days and accumulates 1.54" (39mm) of precipitation.

When is Daylight Saving Time (DST) in Letha?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from MDT to MST.

When it does not snow in Letha?

May through October are months without snowfall.

When are the longest days in Letha?

June has the longest days of the year, with an average of 15h and 25min of daylight.

What is the warmest month in Letha?

With an average high-temperature of 90°F (32.2°C) and an average low-temperature of 59.9°F (15.5°C), July is the warmest month.

What are the least humid months in Letha?

The months with the lowest humidity are July and August, with an average relative humidity of 31%.

What is the driest month in Letha?

July is the month with the least rainfall in Letha, Idaho. Rain falls for 3.2 days and accumulates 0.16" (4mm) of precipitation.

What month has the most sunshine in Letha?

July has the most sunshine of the year in Letha, Idaho, with an average of 12.1h of sunshine.

When is the highest UV index in Letha?

July is the month with the highest UV index, with an average maximum UV index of 7.

What is the coldest month in Letha?

With an average high-temperature of 34.9°F (1.6°C) and an average low-temperature of 22.8°F (-5.1°C), December is the coldest month.

When does it snow the most in Letha?

December is the month with the most snowfall. Snow falls for 7.5 days and accumulates 4.33" (110mm) of snow.

What is the month with the shortest days in Letha?

The month with the shortest days in Letha is December, with an average of 8h and 58min of daylight.

What is the month with the least sunshine in Letha?

The month with the least sunshine in Letha, Idaho, is December, with an average of 5.3h of sunshine.

Average temperature
Letha, ID

Average temperature - Letha, ID

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (34.9°F).

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).

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Average pressure
Letha, ID

Average pressure - Letha, ID

The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

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Average wind speed
Letha, ID

Average wind speed - Letha, ID

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

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Average humidity
Letha, ID

Average humidity - Letha, ID

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (31%).

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Average rainfall
Letha, ID

Average rainfall - Letha, ID

The wettest month (with the highest rainfall) is March (1.54").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days
Letha, ID

Average rainfall days - Letha, ID

The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.2 days).

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Average snowfall
Letha, ID

Average snowfall - Letha, ID

The month with the highest snowfall is December (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Letha, ID

Average snowfall days - Letha, ID

The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Letha, ID

Average daylight / Average sunshine - Letha, ID

The month with the longest days is June (Average daylight: 15h and 25min).
The month with the shortest days is December (Average daylight: 8h and 58min).

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days
Letha, ID

Average sunshine days - Letha, ID

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (15.3 days).

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Average visibility
Letha, ID

Average visibility - Letha, ID

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).

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