Dry-summer warm continental climate
Climate Ketchum - Idaho
Annual high55ºF
Annual low26ºF
Precipitation17.96 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 31 | 8 | 2.10 | 26 |
| Feb | 36 | 10 | 1.75 | 20 |
| Mar | 44 | 19 | 1.68 | 12 |
| Apr | 53 | 27 | 1.25 | 4 |
| May | 62 | 34 | 1.76 | 0 |
| Jun | 71 | 40 | 1.49 | 0 |
| Jul | 81 | 45 | 0.64 | 0 |
| Aug | 80 | 43 | 0.67 | 0 |
| Sep | 70 | 35 | 0.91 | 0 |
| Oct | 57 | 28 | 1.37 | 2 |
| Nov | 42 | 17 | 1.73 | 17 |
| Dec | 31 | 8 | 2.61 | 32 |
- JanHigh 31ºFLow 8ºFPrecip 2.10 inch
- FebHigh 36ºFLow 10ºFPrecip 1.75 inch
- MarHigh 44ºFLow 19ºFPrecip 1.68 inch
- AprHigh 53ºFLow 27ºFPrecip 1.25 inch
- MayHigh 62ºFLow 34ºFPrecip 1.76 inch
- JunHigh 71ºFLow 40ºFPrecip 1.49 inch
- JulHigh 81ºFLow 45ºFPrecip 0.64 inch
- AugHigh 80ºFLow 43ºFPrecip 0.67 inch
- SepHigh 70ºFLow 35ºFPrecip 0.91 inch
- OctHigh 57ºFLow 28ºFPrecip 1.37 inch
- NovHigh 42ºFLow 17ºFPrecip 1.73 inch
- DecHigh 31ºFLow 8ºFPrecip 2.61 inch
Climate summary
What is the average weather in Ketchum, Idaho?
Ketchum experiences a humid continental climate, marked by very large seasonal temperature contrasts. Winters are very cold and bring significant snowfall. Summers are warm but dry, with most of the low annual precipitation arriving in the cooler months, often as snow at this high elevation.
Ketchum weather averages
Annual high55ºF
Annual low26ºF
Precipitation17.96 inch
Snowfall113 inch
Daily normals Ketchum - Idaho - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 29.6 | 7.5 | 0.09 | 0.09 | 1.00 | 1.00 |
| Jan 2 | 29.7 | 7.5 | 0.18 | 0.18 | 2.10 | 2.10 |
| Jan 3 | 29.8 | 7.5 | 0.27 | 0.27 | 3.10 | 3.10 |
| Jan 4 | 29.9 | 7.5 | 0.36 | 0.36 | 4.00 | 4.00 |
| Jan 5 | 30.0 | 7.5 | 0.45 | 0.45 | 5.00 | 5.00 |
| Jan 6 | 30.1 | 7.5 | 0.53 | 0.53 | 6.00 | 6.00 |
| Jan 7 | 30.3 | 7.5 | 0.62 | 0.62 | 7.00 | 7.00 |
| Jan 8 | 30.4 | 7.5 | 0.71 | 0.71 | 8.10 | 8.10 |
| Jan 9 | 30.5 | 7.6 | 0.80 | 0.80 | 9.20 | 9.20 |
| Jan 10 | 30.6 | 7.6 | 0.89 | 0.89 | 10.20 | 10.20 |
| Jan 11 | 30.8 | 7.7 | 0.97 | 0.97 | 11.20 | 11.20 |
| Jan 12 | 30.9 | 7.7 | 1.06 | 1.06 | 12.20 | 12.20 |
| Jan 13 | 31.0 | 7.7 | 1.14 | 1.14 | 13.20 | 13.20 |
| Jan 14 | 31.1 | 7.8 | 1.22 | 1.22 | 14.10 | 14.10 |
| Jan 15 | 31.3 | 7.8 | 1.29 | 1.29 | 15.00 | 15.00 |
| Jan 16 | 31.4 | 7.9 | 1.36 | 1.36 | 15.90 | 15.90 |
| Jan 17 | 31.5 | 7.9 | 1.43 | 1.43 | 16.70 | 16.70 |
| Jan 18 | 31.6 | 8.0 | 1.49 | 1.49 | 17.60 | 17.60 |
| Jan 19 | 31.7 | 8.1 | 1.56 | 1.56 | 18.40 | 18.40 |
| Jan 20 | 31.8 | 8.1 | 1.62 | 1.62 | 19.20 | 19.20 |
| Jan 21 | 31.9 | 8.2 | 1.68 | 1.68 | 20.00 | 20.00 |
| Jan 22 | 32.0 | 8.3 | 1.74 | 1.74 | 20.70 | 20.70 |
| Jan 23 | 32.1 | 8.3 | 1.80 | 1.80 | 21.50 | 21.50 |
| Jan 24 | 32.2 | 8.4 | 1.86 | 1.86 | 22.20 | 22.20 |
| Jan 25 | 32.3 | 8.5 | 1.92 | 1.92 | 22.90 | 22.90 |
| Jan 26 | 32.4 | 8.5 | 1.97 | 1.97 | 23.60 | 23.60 |
| Jan 27 | 32.5 | 8.6 | 2.03 | 2.03 | 24.30 | 24.30 |
| Jan 28 | 32.6 | 8.7 | 2.08 | 2.08 | 24.90 | 24.90 |
| Jan 29 | 32.7 | 8.8 | 2.14 | 2.14 | 25.60 | 25.60 |
| Jan 30 | 32.8 | 8.9 | 2.19 | 2.19 | 26.30 | 26.30 |
| Jan 31 | 32.9 | 9.0 | 2.25 | 2.25 | 27.00 | 27.00 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Ketchum - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | – | 41.0 | 0.00 |
| Oct 2 | 73.0 | 37.9 | 0.00 |
| Oct 3 | 79.0 | 36.0 | 0.00 |
| Oct 4 | – | – | 0.00 |
| Oct 5 | – | – | 0.00 |
| Oct 6 | 81.0 | 37.0 | 0.00 |
| Oct 7 | 81.0 | – | 0.00 |
| Oct 8 | – | – | 0.00 |
| Oct 9 | 79.0 | 37.9 | – |
| Oct 10 | – | – | 0.00 |
| Oct 11 | – | – | – |
| Oct 12 | – | – | – |
| Oct 13 | – | – | – |
| Oct 14 | – | – | 0.01 |
| Oct 15 | 64.0 | 28.0 | – |
| Oct 16 | – | – | 0.00 |
| Oct 17 | – | – | 0.00 |
| Oct 18 | 66.0 | 28.0 | 0.00 |
| Oct 19 | – | 28.0 | 0.00 |
| Oct 20 | – | 28.0 | 0.00 |
| Oct 21 | 64.9 | 32.0 | 0.05 |
| Oct 22 | 66.0 | 39.0 | – |
| Oct 23 | 63.0 | 39.9 | – |
| Oct 24 | – | – | – |
| Oct 25 | – | – | – |
| Oct 26 | – | – | – |
| Oct 27 | – | – | – |
| Oct 28 | – | – | – |
| Oct 29 | 46.9 | 21.9 | – |
| Oct 30 | 52.0 | 21.0 | – |
| Oct 31 | – | – | – |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature81.0ºF · Oct 6
- Lowest max temperature46.9ºF · Oct 29
- Highest min temperature41.0ºF · Oct 1
- Lowest min temperature21.0ºF · Oct 30
Geo Ketchum - Idaho
Location
- Country
- United States
- State
- Idaho
- County
- Blaine
- City
- Ketchum
- Zip Code
- 83353
- Elevation
- 5807 ft
- Longitude
- -114.36
- Latitude
- 43.68
- ICAO
- –
- IATA
- –