Climate and monthly weather forecast
Harrison, ID

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Weather in January

January, like December, in Harrison, Idaho, is a wintry winter month, with temperature in the range of an average high of 33.6°F (0.9°C) and an average low of 22.5°F (-5.3°C). January is marked by an average high-temperature of a still cold 33.6°F (0.9°C), almost identical to the preceding month. Weather in January »

Weather in February

February, the last month of the winter in Harrison, is also an icy month, with an average temperature varying between 23.5°F (-4.7°C) and 36.1°F (2.3°C). As January turns into February, the average high-temperatures rest at a still icy 36.1°F (2.3°C), showing a minor variation from the prior month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Harrison, Idaho, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 43.3°F (6.3°C). As March arrives, Harrison's weather shows a minor increase in high-temperatures, edging from February's cold 36.1°F (2.3°C) to a frosty 43.3°F (6.3°C). Weather in March »

Weather in April

April in Harrison, Idaho, is a fresh spring month, with an average temperature varying between 33.3°F (0.7°C) and 52.9°F (11.6°C). Harrison, Idaho, in April shows a temperature shift, moving from an average high of a frosty 43.3°F (6.3°C) in March to a fresh 52.9°F (11.6°C). Weather in April »

Weather in May

May, the last month of the spring in Harrison, is a refreshing month, with temperature in the range of an average high of 64.2°F (17.9°C) and an average low of 39.7°F (4.3°C). In May, the meteorological conditions change with the average high-temperature moving from a fresh 52.9°F (11.6°C) in April to an enjoyable 64.2°F (17.9°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Harrison, Idaho, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 45°F (7.2°C). A soft shift in the average high-temperature is noticeable in June, transitioning from a refreshing 64.2°F (17.9°C) in May to an agreeable 69.6°F (20.9°C). Weather in June »

Weather in July

July in Harrison, Idaho, is a moderately hot summer month, with an average temperature ranging between max 81°F (27.2°C) and min 51.6°F (10.9°C). July's onset witnesses a shift in the average high-temperature, moving from an agreeable 69.6°F (20.9°C) in June to a moderately hot 81°F (27.2°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Harrison, Idaho, with an average temperature varying between 81.5°F (27.5°C) and 52.9°F (11.6°C). With average high and low temperatures of 81.5°F (27.5°C) and 52.9°F (11.6°C) respectively, August is Harrison's warmest month. August's average heat index is appraised at 82.4°F (28°C). Weather in August »

Weather in September

September, the first month of the autumn in Harrison, is still a pleasant month, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 46°F (7.8°C). September brings a decrease in the average high-temperature, shifting from a warm 81.5°F (27.5°C) in August to an agreeable 71.1°F (21.7°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Harrison, Idaho, with an average temperature varying between 36.9°F (2.7°C) and 55°F (12.8°C). As October sets, the average high-temperature displays a significant decrease, moving down from a pleasant 71.1°F (21.7°C) in September to a fresh 55°F (12.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Harrison, is also a wintry month, with an average temperature varying between 41°F (5°C) and 29.3°F (-1.5°C). Harrison's November weather features a mild decline in high-temperatures, reducing from a fresh 55°F (12.8°C) in October to a wintry 41°F (5°C). Weather in November »

Weather in December

December, the first month of the winter in Harrison, is also a wintry month, with an average temperature varying between 22.1°F (-5.5°C) and 32.2°F (0.1°C). December is the month when Harrison sees the lowest average temperatures, with a high of 32.2°F (0.1°C) and a low of 22.1°F (-5.5°C). Weather in December »
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Frequently asked questions

What is the most humid month in Harrison?

The most humid month in Harrison, Idaho, is January, with an average relative humidity of 92%.

What is the rainiest month in Harrison?

The month with the most rainfall is January, when the rain falls for 12.3 days and typically aggregates up to 3.39" (86mm) of precipitation.

How much does it rain in Harrison?

In Harrison, during the entire year, the rain falls for 148.8 days and collects up to 23.86" (606mm) of precipitation.

When does it snow in Harrison?

Months with snowfall in Harrison, Idaho, are January through May, September through December.

What is the snowiest month in Harrison?

January is the month with the most snowfall in Harrison, Idaho. Snow falls for 15.6 days and accumulates 15.2" (386mm) of snow.

How much does it snow in Harrison?

In Harrison, during the entire year, snow falls for 67.9 days and aggregates up to 53.5" (1359mm) of snow.

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

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

When is Daylight Saving Time (DST) in Harrison?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow in Harrison?

In Harrison, Idaho, snow does not fall in June through August.

When are the longest days in Harrison?

The month with the longest days in Harrison, Idaho, is June, with an average of 15h and 54min of daylight.

What is the driest month in Harrison?

July is the month with the least rainfall. Rain falls for 6 days and accumulates 0.43" (11mm) of precipitation.

When is the highest UV index in Harrison?

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

What is the warmest month in Harrison?

In Harrison, August registers the highest temperatures, averaging 81.5°F (27.5°C) at the peak and 52.9°F (11.6°C) at the lowest.

What is the least humid month in Harrison?

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

What month has the most sunshine in Harrison?

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

What are the coldest months in Harrison?

Harrison, Idaho, notes the coldest temperatures in December, with a average high of 32.2°F (0.1°C) and a low of 22.1°F (-5.5°C).

What is the month with the shortest days in Harrison?

With an average of 8h and 30min of daylight, December has the shortest days of the year in Harrison, Idaho.

What is the month with the least sunshine in Harrison?

With an average of 3.4h of sunshine, December has the least sunshine of the year.

Average temperature
Harrison, ID

Average temperature - Harrison, ID

The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is December (32.2°F).

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).

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Average pressure
Harrison, ID

Average pressure - Harrison, ID

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed
Harrison, ID

Average wind speed - Harrison, ID

The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August, September and December (4.3mph).

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Average rainfall
Harrison, ID

Average rainfall - Harrison, ID

The wettest month (with the highest rainfall) is January (3.39").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days
Harrison, ID

Average rainfall days - Harrison, ID

The month with the highest number of rainy days is March (18.6 days).
The month with the least rainy days is August (5.6 days).

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Average snowfall
Harrison, ID

Average snowfall - Harrison, ID

The month with the highest snowfall is January (15.2").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Harrison, ID

Average snowfall days - Harrison, ID

The month with the highest number of snowfall days is December (16.6 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Harrison, ID

Average daylight / Average sunshine - Harrison, ID

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

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Average sunshine days
Harrison, ID

Average sunshine days - Harrison, ID

The month with the most sunshine days is July (22.8 days).
The month with the least sunshine days is February (7.6 days).

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Average UV index
Harrison, ID

Average UV index - Harrison, ID

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average visibility
Harrison, ID

Average visibility - Harrison, ID

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

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Harrison, Idaho, USA

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