Climate and monthly weather forecast
Winchester, ID

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Weather in January

January, like December, in Winchester, Idaho, is an icy winter month, with an average temperature ranging between max 34.9°F (1.6°C) and min 22.5°F (-5.3°C). With the arrival of January, Winchester's average high-temperature registers at a still cold 34.9°F (1.6°C), indicating a subtle variation from the previous month. Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Winchester, Idaho, with an average temperature fluctuating between 24.6°F (-4.1°C) and 36.9°F (2.7°C). February's advent presents an average high-temperature of a still wintry 36.9°F (2.7°C), indicating a slight variation from the conditions of the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Winchester, Idaho, with temperature in the range of an average low of 29.5°F (-1.4°C) and an average high of 44.2°F (6.8°C). The shift from February to March sees a slight increase in the average high-temperature, transitioning from an icy 36.9°F (2.7°C) to a frosty 44.2°F (6.8°C). Weather in March »

Weather in April

April is a cool spring month in Winchester, Idaho, with an average temperature fluctuating between 52°F (11.1°C) and 33.3°F (0.7°C). The coming of April brings a minor shift in Winchester's weather, with average high-temperatures adjusting from March's frosty 44.2°F (6.8°C) to a cool 52°F (11.1°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Winchester, Idaho, with an average temperature varying between 38.8°F (3.8°C) and 61.9°F (16.6°C). The onset of May brings a temperature shift, with the average high-temperature moving from a cool 52°F (11.1°C) in April to a comfortable 61.9°F (16.6°C). Weather in May »

Weather in June

June, the first month of the summer in Winchester, is a pleasant month, with an average temperature varying between 44.4°F (6.9°C) and 68.5°F (20.3°C). Observing a minor shift, the average high-temperature during June adjusts from May's comfortable 61.9°F (16.6°C) to a pleasant 68.5°F (20.3°C). Weather in June »

Weather in July

July in Winchester, Idaho, is a warm summer month, with an average temperature varying between 80.8°F (27.1°C) and 52°F (11.1°C). In Winchester, the average high-temperature in July rises, from an agreeable 68.5°F (20.3°C) in June, to a moderately hot 80.8°F (27.1°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Winchester, Idaho, with an average temperature varying between 82°F (27.8°C) and 54.7°F (12.6°C). In Winchester, the peak average temperatures are observed in August, with a high of 82°F (27.8°C) and a low of 54.7°F (12.6°C). For most parts of August, the heat index is computed to be 82.4°F (28°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Winchester, Idaho, with an average temperature varying between 48.9°F (9.4°C) and 72.7°F (22.6°C). During Winchester's transition into September, the average high-temperature lessens, moving from a moderately hot 82°F (27.8°C) in August to an agreeable 72.7°F (22.6°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Winchester, Idaho, with an average temperature varying between 37.9°F (3.3°C) and 55.8°F (13.2°C). The average high-temperature exhibits a considerable decrease in October, dropping from an agreeable 72.7°F (22.6°C) in September to a mild 55.8°F (13.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Winchester, Idaho, with temperature in the range of an average low of 28.6°F (-1.9°C) and an average high of 42.6°F (5.9°C). The shift from October to November involves a decrease in the average high-temperature, dropping from a moderate 55.8°F (13.2°C) to an icy 42.6°F (5.9°C). Weather in November »

Weather in December

December, the first month of the winter in Winchester, is also a wintry month, with an average temperature fluctuating between 32.5°F (0.3°C) and 20.7°F (-6.3°C). December, with average temperatures reaching a high of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C), is the coldest month. Weather in December »
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month?

The most humid month is January, with an average relative humidity of 90%.

How much does it rain?

In Winchester, during the entire year, the rain falls for 133.5 days and collects up to 28.9" (734mm) of precipitation.

When does it snow?

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

How many days does it snow?

In Winchester, during the entire year, snow falls for 112.2 days and aggregates up to 105.79" (2687mm) of snow.

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 19 days and accumulates 23.11" (587mm) of snow.

What are the months with the lowest UV index?

February and December, with an average maximum UV index of 1, are months with the lowest UV index.

When is Daylight Saving Time (DST)?

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.

What is the wettest month?

April is the month with the most rainfall. Rain falls for 17.8 days and accumulates 3.58" (91mm) of precipitation.

When are the longest days?

The month with the longest days is June, with an average of 15h and 42min of daylight.

What is the driest month?

The month with the least rainfall is July, when the rain falls for 7.8 days and typically collects 0.63" (16mm) of precipitation.

When it does not snow?

In Winchester, Idaho, snow does not fall in July and August.

What is the month with the highest UV index?

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

What time of the year is the hottest?

August, having an average high-temperature of 82°F (27.8°C) and an average low-temperature of 54.7°F (12.6°C), is the warmest month in Winchester.

What is the least humid month?

August is the least humid month, with an average relative humidity of 44%.

What month has the most sunshine?

August has the most sunshine of the year in Winchester, Idaho, with an average of 11.9h of sunshine.

What are the coldest months in Winchester?

With its average high temperature of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C), December is regarded as the coldest month.

What is the month with the shortest days in Winchester?

The month with the shortest days is December, with an average of 8h and 42min of daylight.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 4.2h of sunshine.

Average temperature
Winchester, ID

Average temperature - Winchester, ID

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (32.5°F).

The month with the highest average low temperature is August (54.7°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

Average pressure
Winchester, ID

Average pressure - Winchester, ID

The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).

Average wind speed
Winchester, ID

Average wind speed - Winchester, ID

The windiest months (with the highest average wind speed) are January, February, March and November (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity
Winchester, ID

Average humidity - Winchester, ID

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (44%).

Average rainfall
Winchester, ID

Average rainfall - Winchester, ID

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is July (0.63").

Average rainfall days
Winchester, ID

Average rainfall days - Winchester, ID

The month with the highest number of rainy days is April (17.8 days).
The month with the least rainy days is January (6 days).

Average snowfall
Winchester, ID

Average snowfall - Winchester, ID

The month with the highest snowfall is February (23.11").
The months with the least snowfall are July and August (0").

Average snowfall days
Winchester, ID

Average snowfall days - Winchester, ID

The month with the highest number of snowfall days is December (19.9 days).
The months with the least snowfall days are July and August (0 days).

Average daylight / Average sunshine
Winchester, ID

Average daylight / Average sunshine - Winchester, ID

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days
Winchester, ID

Average sunshine days - Winchester, ID

The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.3 days).

Average visibility
Winchester, ID

Average visibility - Winchester, 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 (4mi).

Winchester, Idaho, USA

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