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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
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 high of 26.8°F (-2.9°C) and an average low of 8.4°F (-13.1°C). The advent of January denotes an average high-temperature of a still subzero cold 26.8°F (-2.9°C), subtly different from December's 25°F (-3.9°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Ketchum, Idaho, with an average temperature fluctuating between 10°F (-12.2°C) and 27°F (-2.8°C). February's advent denotes a minor fluctuation in the average high-temperature to a still freezing cold 27°F (-2.8°C) from January's 26.8°F (-2.9°C). Weather in February »
Weather in March
March, the first month of the spring in Ketchum, is a wintry month, with an average temperature fluctuating between 32.2°F (0.1°C) and 16.9°F (-8.4°C). With the onset of March, the average high-temperature registers at a cold 32.2°F (0.1°C), subtly different from February's 27°F (-2.8°C). Weather in March »
Weather in April
April, the same as March, is an icy spring month in Ketchum, Idaho, with an average temperature fluctuating between 39.9°F (4.4°C) and 23.4°F (-4.8°C). Ketchum's transition into April sees a mild rise in the average high-temperature, edging from 32.2°F (0.1°C) in March to a still icy 39.9°F (4.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a fresh month in Ketchum, Idaho, with an average temperature ranging between min 32.9°F (0.5°C) and max 51.4°F (10.8°C). As April gives way to May, the average high-temperature displays an increase, moving from a wintry 39.9°F (4.4°C) to a fresh 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 temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 62.4°F (16.9°C). June brings a temperature change, with average high-temperatures moving from May's fresh 51.4°F (10.8°C) to a comfortable 62.4°F (16.9°C). Weather in June »
Weather in July
July in Ketchum, Idaho, is a warm summer month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 74.1°F (23.4°C). July is the warmest month of the year, registering average temperatures as high as 74.1°F (23.4°C) and as low as 50.5°F (10.3°C). Weather in July »
Weather in August
The last month of the summer, August, is another pleasant month in Ketchum, Idaho, with an average temperature varying between 73.2°F (22.9°C) and 50.5°F (10.3°C). The onset of August marks an average high-temperature of a pleasant 73.2°F (22.9°C), hardly differing from July's 74.1°F (23.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a refreshing month in Ketchum, Idaho, with an average temperature varying between 43.2°F (6.2°C) and 63.7°F (17.6°C). In the transition to September, Ketchum observes a drop in the average high-temperature, moving from an agreeable 73.2°F (22.9°C) in August to a refreshing 63.7°F (17.6°C). Weather in September »
Weather in October
October, like September, is a frosty autumn month in Ketchum, Idaho, with an average temperature ranging between max 48°F (8.9°C) and min 31.1°F (-0.5°C). The arrival of October brings a distinct temperature shift, with the average high-temperature dropping from a comfortable 63.7°F (17.6°C) in September to a chilly 48°F (8.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Ketchum, is also an icy month, with an average temperature ranging between max 34.7°F (1.5°C) and min 18.9°F (-7.3°C). The move into November indicates a reduction in the average high-temperature, down from October's frosty 48°F (8.9°C) to a wintry 34.7°F (1.5°C). Weather in November »
Weather in December
December, the first month of the winter in Ketchum, is still a freezing cold month, with an average temperature ranging between max 25°F (-3.9°C) and min 8.6°F (-13°C). December, with average temperatures reaching a high of 25°F (-3.9°C) and a low of 8.6°F (-13°C), is the coldest month. Weather in December »
[Resources]Frequently asked questions
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, Idaho, are January through June, September through December.
How many days does it snow in Ketchum?
In Ketchum, Idaho, during the entire year, snow falls for 88.2 days and aggregates up to 69.45" (1764mm) of snow.
What is the month with the least sunshine in Ketchum?
With an average of 5.7h of sunshine, January has the least sunshine of the year in Ketchum.
What is the most humid month in Ketchum?
February is the most humid month, with an average relative humidity of 87%.
When does it snow the most in Ketchum?
The month with the most snowfall 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, Idaho, is February, with an average maximum UV index of 1.
What is the wettest month in Ketchum?
March is the month with the most rainfall in Ketchum, Idaho. Rain falls for 11.4 days and accumulates 2.01" (51mm) of precipitation.
When is Daylight Saving Time (DST) in Ketchum?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Ketchum, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, 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 24min of daylight, June has the longest days of the year.
What is the month 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 in Ketchum.
What is the warmest month in Ketchum?
July is the month when Ketchum's temperatures reach their peak, with averages of 74.1°F (23.4°C) and lows of 50.5°F (10.3°C).
What is the driest month in Ketchum?
July is the month with the least rainfall in Ketchum, Idaho. Rain falls for 5.9 days and accumulates 0.43" (11mm) of precipitation.
When it does not snow in Ketchum?
In Ketchum, snow does not fall in July and August.
What month has the most sunshine in Ketchum?
The month with the most sunshine is July, with an average of 12h of sunshine.
What is the least humid month in Ketchum?
The least humid month in Ketchum, Idaho, is August, with an average relative humidity of 37%.
What month is the coldest in Ketchum?
In Ketchum, December registers the lowest temperatures, averaging 25°F (-3.9°C) at the peak and 8.6°F (-13°C) at the lowest.
What is the month with the shortest days in Ketchum?
The month with the shortest days in Ketchum, Idaho, is December, with an average of 9h and 0min of daylight.
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).
Average pressure
Ketchum, ID
- Average pressure in January:
30.27"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.24"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Ketchum, ID
- Average wind speed in January:
4.5mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.5mph - Average wind speed in April:
5.9mph - Average wind speed in May:
5.8mph - Average wind speed in June:
6.2mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
5.9mph - Average wind speed in September:
5.4mph - Average wind speed in October:
5.2mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.7mph
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).
Average humidity
Ketchum, ID
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (37%).
Average rainfall
Ketchum, ID
- Average rainfall in January:
1.57" - Average rainfall in February:
1.93" - Average rainfall in March:
2.01" - Average rainfall in April:
1.5" - Average rainfall in May:
1.77" - Average rainfall in June:
1.22"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.51" - Average rainfall in September:
0.87" - Average rainfall in October:
1.06" - Average rainfall in November:
1.1" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Ketchum, ID
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
7.4 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
11.9 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
11.5 days
- Average rainfall days in July:
5.9 days - Average rainfall days in August:
6.5 days - Average rainfall days in September:
8.8 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
7 days - Average rainfall days in December:
7 days
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).
Average snowfall
Ketchum, ID
- Average snowfall in January:
12.72" - Average snowfall in February:
15" - Average snowfall in March:
12.56" - Average snowfall in April:
5.83" - Average snowfall in May:
1.46" - Average snowfall in June:
0.2"
The month with the highest snowfall is February (15").
The months with the least snowfall are July and August (0").
Average snowfall days
Ketchum, ID
- Average snowfall days in January:
14.1 days - Average snowfall days in February:
15.5 days - Average snowfall days in March:
16 days - Average snowfall days in April:
10.6 days - Average snowfall days in May:
2.8 days - Average snowfall days in June:
0.7 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.5 days - Average snowfall days in October:
3.4 days - Average snowfall days in November:
10.6 days - Average snowfall days in December:
14 days
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).
Average daylight / Average sunshine
Ketchum, ID
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 1min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
6h and 2min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 4min - Average sunshine in May:
10h and 5min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
7h and 4min - Average sunshine in November:
6h and 4min - Average sunshine in December:
5h and 5min
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).
Average sunshine days
Ketchum, ID
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
11.7 days - Average sunshine days in March:
11.3 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
20.8 days - Average sunshine days in August:
20.6 days - Average sunshine days in September:
19.7 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
16.7 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is April (11.1 days).
Average UV index
Ketchum, ID
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover
Ketchum, ID
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 10).
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).
Ketchum, Idaho, USA
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