Ketchum October Weather

Averages and records for weather in Ketchum, Idaho in the month of October.
Typical Ketchum October Weather
1991–2020
Average daily high 56.4 °F
Average daily low 27.1 °F
Average monthly precipitation 1.4 inches
Average monthly snow 1.6 inches
Daily chance of precipitation 16.2%
Daily chance of snow 2.2%
Ketchum October Weather Records
1937–2024
Highest temperature 85 °F October 10, 1971
Lowest temperature -3 °F October 23, 1943
Highest daily low 49 °F October 2, 2015
Lowest daily high 23 °F October 30, 2019
Hottest average high temperature 70.6 °F 1952
Coldest average high temperature 47.1 °F 2019
Most daily precipitation 1.6 inches October 25, 2010
Most monthly precipitation 3.4 inches 1956
Most daily snow 11.0 inches October 26, 1991
Most monthly snow 19.0 inches 1956
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
October 1 63.1 31.2 80 12
October 2 62.7 30.9 82 16
October 3 62.4 30.6 80 14
October 4 62.1 30.3 79 12
October 5 61.8 30.0 79 12
October 6 61.4 29.8 78 8
October 7 61.1 29.6 80 11
October 8 60.8 29.3 79 10
October 9 60.4 29.1 79 10
October 10 59.9 28.9 85 9
October 11 59.4 28.6 77 10
October 12 58.8 28.4 79 14
October 13 58.3 28.1 77 9
October 14 57.7 27.8 78 6
October 15 57.2 27.4 77 11
October 16 56.5 27.2 75 10
October 17 55.8 26.8 77 6
October 18 55.3 26.4 74 10
October 19 54.8 26.0 74 11
October 20 54.3 25.7 72 4
October 21 54.0 25.4 72 6
October 22 53.5 25.0 75 7
October 23 53.1 24.7 77 -3
October 24 52.6 24.4 73 8
October 25 52.3 24.1 73 3
October 26 51.8 23.8 75 3
October 27 51.4 23.5 74 0
October 28 51.0 23.3 72 5
October 29 50.4 22.9 77 3
October 30 49.8 22.6 70 -2
October 31 49.3 22.3 67 -2
Weather Station Details
Years Station Coordinates
1973–2024 Ketchum location
1937–1972 Sun Valley location