Climate and monthly weather forecast
Grangeville, ID

Weather in January

January, the same as December, is a wintry winter month in Grangeville, Idaho, with an average temperature fluctuating between 24.1°F (-4.4°C) and 35.6°F (2°C). In January, the average high-temperature is essentially the same as in December - a still wintry 35.6°F (2°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Grangeville, Idaho, with an average temperature fluctuating between 37.6°F (3.1°C) and 25°F (-3.9°C). In Grangeville, the average high-temperature in February is almost the same as in January - a still cold 37.6°F (3.1°C). Weather in February »

Weather in March

March, the first month of the spring in Grangeville, is a chilly month, with an average temperature varying between 44.6°F (7°C) and 29.7°F (-1.3°C). In March, the average high-temperature slightly increases from a wintry 37.6°F (3.1°C) in February to a chilly 44.6°F (7°C). Weather in March »

Weather in April

April is a fresh spring month in Grangeville, Idaho, with temperature in the range of an average low of 33.1°F (0.6°C) and an average high of 52.3°F (11.3°C). In Grangeville, the average high-temperature in April marginally rises from a frosty 44.6°F (7°C) in March to a fresh 52.3°F (11.3°C). Weather in April »

Weather in May

May, the last month of the spring in Grangeville, is a comfortable month, with an average temperature fluctuating between 62.6°F (17°C) and 38.8°F (3.8°C). In May, the average high-temperature increases from a fresh 52.3°F (11.3°C) in April to a comfortable 62.6°F (17°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Grangeville, Idaho, with an average temperature varying between 44.2°F (6.8°C) and 69.4°F (20.8°C). In June, the average high-temperature marginally rises from a comfortable 62.6°F (17°C) in May to an agreeable 69.4°F (20.8°C). Weather in June »

Weather in July

July is a moderately hot summer month in Grangeville, Idaho, with an average temperature varying between 51.3°F (10.7°C) and 81.7°F (27.6°C). In Grangeville, the average high-temperature in July increases from an agreeable 69.4°F (20.8°C) in June to a moderately hot 81.7°F (27.6°C). Weather in July »

Weather in August

August, the last month of the summer in Grangeville, is another warm month, with an average temperature varying between 82.6°F (28.1°C) and 53.2°F (11.8°C). With an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 53.2°F (11.8°C), August is the warmest month. In August, the average heat index is calculated to be 82.4°F (28°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Grangeville, Idaho, with an average temperature fluctuating between 72.7°F (22.6°C) and 47.3°F (8.5°C). In Grangeville, the average high-temperature in September drops from a warm 82.6°F (28.1°C) in August to a pleasant 72.7°F (22.6°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Grangeville, Idaho, with an average temperature fluctuating between 56.5°F (13.6°C) and 37.8°F (3.2°C). In Grangeville, the average high-temperature in October plummets from a pleasant 72.7°F (22.6°C) in September to a moderate 56.5°F (13.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Grangeville, is another chilly month, with an average temperature fluctuating between 29.1°F (-1.6°C) and 43.3°F (6.3°C). In Grangeville, the average high-temperature in November decreases from a mild 56.5°F (13.6°C) in October to a chilly 43.3°F (6.3°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Grangeville, Idaho, with temperature in the range of an average high of 33.6°F (0.9°C) and an average low of 21.7°F (-5.7°C). The coldest month is December, with an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21.7°F (-5.7°C). Weather in December »
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FAQ

What is the most humid month in Grangeville?

January is the most humid month, with an average relative humidity of 88%.

How many days does it rain in Grangeville?

Throughout the year, there are 146.2 rainfall days, and 23.35" (593mm) of precipitation is accumulated.

When does it snow in Grangeville?

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

How much does it snow in Grangeville?

In Grangeville, during the entire year, snow falls for 80.3 days and aggregates up to 60.47" (1536mm) of snow.

What is the month with the least sunshine in Grangeville?

The month with the least sunshine in Grangeville, Idaho, is January, with an average of 4.8h of sunshine.

When does it snow the most in Grangeville?

The month with the most snowfall in Grangeville, Idaho, is February, when snow falls for 15.3 days and typically aggregates up to 12.95" (329mm) of snow.

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

February is the month with the lowest UV index, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Grangeville?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Grangeville, Idaho, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from PDT to PST.

What is the wettest month in Grangeville?

April is the month with the most rainfall. Rain falls for 19.3 days and accumulates 2.91" (74mm) of precipitation.

When it does not snow in Grangeville?

June through August are months without snowfall in Grangeville, Idaho.

When are the longest days in Grangeville?

The month with the longest days in Grangeville is June, with an average of 15h and 41min of daylight.

What is the driest month in Grangeville?

The month with the least rainfall in Grangeville, Idaho, is July, when the rain falls for 7.3 days and typically collects 0.59" (15mm) of precipitation.

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

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

What is the warmest month in Grangeville?

August is the warmest month in Grangeville, with an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 53.2°F (11.8°C).

What is the least humid month in Grangeville?

August is the least humid month, with an average relative humidity of 47%.

What month has the most sunshine in Grangeville?

With an average of 11.9h of sunshine, August has the most sunshine of the year in Grangeville.

What is the coldest month in Grangeville?

With an average high-temperature of 33.6°F (0.9°C) and an average low-temperature of 21.7°F (-5.7°C), December is the coldest month.

What is the month with the shortest days in Grangeville?

With an average of 8h and 43min of daylight, December has the shortest days of the year.

Average temperature
Grangeville, ID

Average temperature - Grangeville, ID

The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (33.6°F).

The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (21.7°F).

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Average pressure
Grangeville, ID

Average pressure - Grangeville, ID

The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).

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Average wind speed
Grangeville, ID

Average wind speed - Grangeville, ID

The windiest months (with the highest average wind speed) are January and November (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

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Average rainfall
Grangeville, ID

Average rainfall - Grangeville, ID

The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is July (0.59").

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Average rainfall days
Grangeville, ID

Average rainfall days - Grangeville, ID

The month with the highest number of rainy days is April (19.3 days).
The month with the least rainy days is August (6.8 days).

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Average snowfall
Grangeville, ID

Average snowfall - Grangeville, ID

The month with the highest snowfall is February (12.95").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Grangeville, ID

Average snowfall days - Grangeville, ID

The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Grangeville, ID

Average daylight / Average sunshine - Grangeville, ID

The month with the longest days is June (Average daylight: 15h and 41min).
The month with the shortest days is December (Average daylight: 8h and 43min).

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

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Average sunshine days
Grangeville, ID

Average sunshine days - Grangeville, ID

The month with the most sunshine days is August (22.2 days).
The month with the least sunshine days is March (7.5 days).

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Average visibility
Grangeville, ID

Average visibility - Grangeville, ID

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).

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