Climate and monthly weather forecast
Ketchum, ID

Weather in January

January, the same as December, in Ketchum, Idaho, is a freezing cold winter month, with temperature in the range of an average low of 8.4°F (-13.1°C) and an average high of 26.8°F (-2.9°C). In Ketchum, Idaho, the average high-temperature in January is practically the same as in December - a still freezing cold 26.8°F (-2.9°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Ketchum, Idaho, with an average temperature ranging between max 27°F (-2.8°C) and min 10°F (-12.2°C). In February, the average high-temperature is relatively the same as in January - a still freezing cold 27°F (-2.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Ketchum, Idaho, with temperature in the range of an average low of 16.9°F (-8.4°C) and an average high of 32.2°F (0.1°C). In March, the average high-temperature is almost the same as in February - a cold 32.2°F (0.1°C). Weather in March »

Weather in April

April, like March, in Ketchum, Idaho, is a wintry spring month, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 39.9°F (4.4°C). In April, the average high-temperature marginally rises from a cold 32.2°F (0.1°C) in March to a still wintry 39.9°F (4.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a cool month in Ketchum, Idaho, with an average temperature ranging between max 51.4°F (10.8°C) and min 32.9°F (0.5°C). In May, the average high-temperature rises from a cold 39.9°F (4.4°C) in April to a cool 51.4°F (10.8°C). Weather in May »

Weather in June

The first month of the summer, June, is an enjoyable month in Ketchum, Idaho, with an average temperature fluctuating between 41.5°F (5.3°C) and 62.4°F (16.9°C). In June, the average high-temperature rises from a cool 51.4°F (10.8°C) in May to an enjoyable 62.4°F (16.9°C). Weather in June »

Weather in July

July in Ketchum, Idaho, is a moderately hot summer month, with an average temperature varying between 50.5°F (10.3°C) and 74.1°F (23.4°C). With an average high-temperature of 74.1°F (23.4°C) and an average low-temperature of 50.5°F (10.3°C), July is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Ketchum, is another pleasant month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 73.2°F (22.9°C). In Ketchum, the average high-temperature in August is practically the same as in July - an agreeable 73.2°F (22.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an enjoyable month in Ketchum, Idaho, with an average temperature varying between 63.7°F (17.6°C) and 43.2°F (6.2°C). In Ketchum, the average high-temperature in September decreases from an agreeable 73.2°F (22.9°C) in August to a comfortable 63.7°F (17.6°C). Weather in September »

Weather in October

October, the same as September, in Ketchum, Idaho, is a frosty autumn month, with an average temperature fluctuating between 31.1°F (-0.5°C) and 48°F (8.9°C). In Ketchum, the average high-temperature in October plummets from an enjoyable 63.7°F (17.6°C) in September to a chilly 48°F (8.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Ketchum, Idaho, with an average temperature fluctuating between 34.7°F (1.5°C) and 18.9°F (-7.3°C). In Ketchum, the average high-temperature in November decreases from a chilly 48°F (8.9°C) in October to a cold 34.7°F (1.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Ketchum, Idaho, with an average temperature varying between 8.6°F (-13°C) and 25°F (-3.9°C). With an average high-temperature of 25°F (-3.9°C) and an average low-temperature of 8.6°F (-13°C), December is the coldest month. Weather in December »
[Resources]

FAQ

How many days does it rain in Ketchum?

Throughout the year, in Ketchum, Idaho, there are 107.7 rainfall days, and 15.63" (397mm) of precipitation is accumulated.

When does it snow in Ketchum?

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

How much does it snow in Ketchum?

Throughout the year, in Ketchum, Idaho, there are 88.2 snowfall days, and 69.45" (1764mm) of snow is accumulated.

What is the month with the least sunshine in Ketchum?

The month with the least sunshine is January, with an average of 5.7h of sunshine.

What is the most humid month in Ketchum?

With an average relative humidity of 87%, February is the most humid month.

What is the snowiest month in Ketchum?

The month with the most snowfall in Ketchum, Idaho, is February, when snow falls for 15.5 days and typically aggregates up to 15" (381mm) of snow.

When is the lowest UV index in Ketchum?

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

What is the wettest month in Ketchum?

The month with the most rainfall in Ketchum is March, when the rain falls for 11.4 days and typically aggregates up to 2.01" (51mm) of precipitation.

When is Daylight Saving Time (DST) in Ketchum?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Ketchum, Idaho, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from MDT to MST.

When are the longest days in Ketchum?

With an average of 15h and 23min of daylight, June has the longest days of the year.

What are the months with the highest UV index in Ketchum?

June and July, with an average maximum UV index of 5, are months with the highest UV index.

What is the warmest month in Ketchum?

With an average high-temperature of 74.1°F (23.4°C) and an average low-temperature of 50.5°F (10.3°C), July is the warmest month.

What is the driest month in Ketchum?

The month with the least rainfall in Ketchum, Idaho, is July, when the rain falls for 5.9 days and typically collects 0.43" (11mm) of precipitation.

When it does not snow in Ketchum?

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

What month has the most sunshine in Ketchum?

With an average of 12h of sunshine, July has the most sunshine of the year in Ketchum, Idaho.

What is the least humid month in Ketchum?

August is the least humid month, with an average relative humidity of 37%.

What is the coldest month in Ketchum?

December is the coldest month in Ketchum, with an average high-temperature of 25°F (-3.9°C) and an average low-temperature of 8.6°F (-13°C).

What is the month with the shortest days in Ketchum?

The month with the shortest days is December, with an average of 8h and 59min of daylight.

Average temperature
Ketchum, ID

Average temperature - Ketchum, ID

The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is December (25°F).

The months with the highest average low temperature are July and August (50.5°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).

[Resources]

Average pressure
Ketchum, ID

Average pressure - Ketchum, ID

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

[Resources]

Average wind speed
Ketchum, ID

Average wind speed - Ketchum, ID

The windiest month (with the highest average wind speed) is July (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.5mph).

[Resources]

Average rainfall
Ketchum, ID

Average rainfall - Ketchum, ID

The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.43").

[Resources]

Average rainfall days
Ketchum, ID

Average rainfall days - Ketchum, ID

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is July (5.9 days).

[Resources]

Average snowfall
Ketchum, ID

Average snowfall - Ketchum, ID

The month with the highest snowfall is February (15").
The months with the least snowfall are July and August (0").

[Resources]

Average snowfall days
Ketchum, ID

Average snowfall days - Ketchum, ID

The month with the highest number of snowfall days is March (16 days).
The months with the least snowfall days are July and August (0 days).

[Resources]

Average daylight / Average sunshine
Ketchum, ID

Average daylight / Average sunshine - Ketchum, ID

The month with the longest days is June (Average daylight: 15h and 23min).
The month with the shortest days is December (Average daylight: 8h and 59min).

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

[Resources]

Average sunshine days
Ketchum, ID

Average sunshine days - Ketchum, ID

The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is April (11.1 days).

[Resources]

Average visibility
Ketchum, ID

Average visibility - Ketchum, ID

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location