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 temperature in the range of an average low of 22.5°F (-5.3°C) and an average high of 34.9°F (1.6°C). The average high-temperature during January is a still wintry 34.9°F (1.6°C), almost matching the conditions of the preceding month. Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Winchester, Idaho, with temperature in the range of an average high of 36.9°F (2.7°C) and an average low of 24.6°F (-4.1°C). The advent of February sees the average high-temperature at a still wintry 36.9°F (2.7°C), subtly shifted from January's 34.9°F (1.6°C). Weather in February »

Weather in March

March, the first month of the spring in Winchester, is a chilly month, with an average temperature ranging between max 44.2°F (6.8°C) and min 29.5°F (-1.4°C). March signifies a subtle uplift in the average high-temperature, adjusting from a wintry 36.9°F (2.7°C) in February to a frosty 44.2°F (6.8°C). Weather in March »

Weather in April

April in Winchester, Idaho, is a fresh spring month, with an average temperature ranging between min 33.3°F (0.7°C) and max 52°F (11.1°C). The start of April signals a slight increase in the average high-temperature, moving from a chilly 44.2°F (6.8°C) in March to a cool 52°F (11.1°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Winchester, Idaho, with an average temperature ranging between max 61.9°F (16.6°C) and min 38.8°F (3.8°C). An upsurge in temperatures occurs as April gives way to May, with average highs shifting from a fresh 52°F (11.1°C) to an enjoyable 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 fluctuating between 68.5°F (20.3°C) and 44.4°F (6.9°C). The coming of June brings a minor shift in Winchester's weather, with average high-temperatures adjusting from May's refreshing 61.9°F (16.6°C) to an agreeable 68.5°F (20.3°C). Weather in June »

Weather in July

July is a moderately hot summer month in Winchester, Idaho, with an average temperature fluctuating between 80.8°F (27.1°C) and 52°F (11.1°C). Winchester experiences a temperature shift with the start of July, with average high-temperatures moving from a pleasant 68.5°F (20.3°C) in June to a moderately hot 80.8°F (27.1°C). Weather in July »

Weather in August

August, the last month of the summer in Winchester, is also a moderately hot month, with an average temperature fluctuating between 54.7°F (12.6°C) and 82°F (27.8°C). Temperature records mark August as the warmest month, with highs averaging 82°F (27.8°C) and lows at 54.7°F (12.6°C). August's mean heat index is estimated at 82.4°F (28°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Winchester, Idaho, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 72.7°F (22.6°C). As August shifts into September, a slight alteration in temperatures is observed, with average highs reducing from a moderately hot 82°F (27.8°C) to an agreeable 72.7°F (22.6°C). Weather in September »

Weather in October

October, the same as September, in Winchester, Idaho, is another refreshing autumn month, with an average temperature varying between 55.8°F (13.2°C) and 37.9°F (3.3°C). The changeover to October signals a significant decrease in the average high-temperature, 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 an average temperature varying between 28.6°F (-1.9°C) and 42.6°F (5.9°C). November brings a decrease in the average high-temperature, falling from October's moderate 55.8°F (13.2°C) to an icy 42.6°F (5.9°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Winchester, Idaho, with an average temperature ranging between min 20.7°F (-6.3°C) and max 32.5°F (0.3°C). Winchester's coldest weather arrives in December, when temperatures average a high of 32.5°F (0.3°C) and a low of 20.7°F (-6.3°C). Weather in December »
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Frequently asked questions

What is the most humid month in Winchester?

With an average relative humidity of 90%, January is the most humid month.

How much does it rain in Winchester?

Throughout the year, in Winchester, Idaho, there are 133.5 rainfall days, and 28.9" (734mm) of precipitation is accumulated.

When does it snow in Winchester?

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

How many days does it snow in Winchester?

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 in Winchester?

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

When is the lowest UV index in Winchester?

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

When is Daylight Saving Time (DST) in Winchester?

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 in Winchester?

The month with the most rainfall is April, when the rain falls for 17.8 days and typically aggregates up to 3.58" (91mm) of precipitation.

When are the longest days in Winchester?

With an average of 15h and 42min of daylight, June has the longest days of the year.

What is the driest month in Winchester?

July is the month with the least rainfall. Rain falls for 7.8 days and accumulates 0.63" (16mm) of precipitation.

When it does not snow in Winchester?

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

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

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

What part of the year is the hottest in Winchester?

August temperatures in Winchester, Idaho, tend to peak at an average high of 82°F (27.8°C) and dip to a low of 54.7°F (12.6°C).

What is the least humid month in Winchester?

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

What month has the most sunshine in Winchester?

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

What is the coldest month in Winchester?

December is the coldest month in Winchester, with an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 20.7°F (-6.3°C).

What is the month with the shortest days in Winchester?

December has the shortest days of the year, with an average of 8h and 42min of daylight.

What is the month with the least sunshine in Winchester?

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

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).

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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).

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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).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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Winchester, Idaho, USA

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