October weather forecast
Ketchum, ID

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).

Temperature

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). The average low-temperature, in Ketchum, is 31.1°F (-0.5°C).

Humidity

The average relative humidity in October is 61%.

Rainfall

In October, the rain falls for 9.3 days. Throughout October, 1.06" (27mm) of precipitation is accumulated. Throughout the year, in Ketchum, there are 107.7 rainfall days, and 15.63" (397mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Ketchum are January through June, September through December. In Ketchum, during October, snow falls for 3.4 days and regularly aggregates up to 2.32" (59mm) of snow. In Ketchum, during the entire year, snow falls for 88.2 days and aggregates up to 69.45" (1764mm) of snow.

Daylight

In Ketchum, the average length of the day in October is 10h and 59min.
On the first day of the month, sunrise is at 7:35 am and sunset at 7:19 pm. On the last day of October, sunrise is at 8:12 am and sunset at 6:30 pm MDT.

Sunshine

In Ketchum, Idaho, the average sunshine in October is 7.7h.

UV index

In Ketchum, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In October, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in October in Ketchum?

In Ketchum, Idaho, in October, the average high-temperature is 48°F (8.9°C), and the average low-temperature is 31.1°F (-0.5°C).

What is the average humidity in October in Ketchum?

In Ketchum, the average relative humidity in October is 61%.

How many days does it rain in October in Ketchum?

In Ketchum, in October, it is raining for 9.3 days, with typically 1.06" (27mm) of accumulated precipitation.

How much does it snow in Ketchum in October?

In October, it is snowing for 3.4 days. Throughout October, 2.32" (59mm) of snow is accumulated.

What is the average length of the day in October in Ketchum?

The average day length in October in Ketchum is 10h and 59min.

When is the sunrise / sunset in October in Ketchum?

In October, on the first day of the month, sunrise is at 7:35 am and sunset at 7:19 pm. On the last day of the month, in Ketchum, sunrise is at 8:12 am and sunset at 6:30 pm MDT.

How many hours of sunshine does Ketchum have in October?

In October, the average sunshine duration in Ketchum, Idaho, is 7.7h.

What is the UV index intensity in October in Ketchum?

The average daily maximum UV index in October in Ketchum, Idaho, is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Ketchum, ID

Average temperature in October - Ketchum, ID
  • Average high temperature in October: 48°F

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).

  • Average low temperature in October: 31.1°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).

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Average pressure in October
Ketchum, ID

Average pressure in October - Ketchum, ID
  • Average pressure in October: 30.05"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).

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Average wind speed in October
Ketchum, ID

Average wind speed in October - Ketchum, ID
  • Average wind speed in October: 5.2mph

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).

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Average humidity in October
Ketchum, ID

Average humidity in October - Ketchum, ID
  • Average humidity in October: 61%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in October
Ketchum, ID

Average rainfall in October - Ketchum, ID
  • Average rainfall in October: 1.06"

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

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Average rainfall days in October
Ketchum, ID

Average rainfall days in October - Ketchum, ID
  • Average rainfall days in October: 9.3 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).

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Average snowfall in October
Ketchum, ID

Average snowfall in October - Ketchum, ID
  • Average snowfall in October: 2.32"

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

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Average snowfall days in October
Ketchum, ID

Average snowfall days in October - Ketchum, ID
  • Average snowfall days in October: 3.4 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).

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Average daylight in October /
Average sunshine in October
Ketchum, ID

Average daylight in October / Average sunshine in October - Ketchum, ID
  • Average daylight in October: 10h and 59min

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).

  • Average sunshine in October: 7h and 42min

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).

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Average sunshine days in October
Ketchum, ID

Average sunshine days in October - Ketchum, ID
  • Average sunshine days in October: 18.2 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).

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Average UV index in October
Ketchum, ID

Average UV index in October - Ketchum, ID
  • Average UV index in October: 2

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).

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Average cloud cover in October
Ketchum, ID

Average cloud cover in October - Ketchum, ID
  • Average cloud cover in October: 22

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 10).

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Average visibility in October
Ketchum, ID

Average visibility in October - Ketchum, ID
  • Average visibility in October: 6mi

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).

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