Sun Valley (Ketchum), Idaho weather in April
Temperature, rain and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Fair
Best time to visit: June, August – September
Best for skiing: December – April
What is the weather like in Sun Valley (Ketchum), Idaho in April?
In April, Sun Valley (Ketchum), Idaho is cold: daytime highs average 8 °C, and nights often drop below freezing (−4 °C). The sun shines for around 8 hours a day. Rain falls on about 9 days, adding up to 36 mm. Snow falls on about 3 days. All in all, April is a so-so month for a holiday in Sun Valley (Ketchum), Idaho.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 13 h 23 min06:56 – 20:19
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 54 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 3 days1 cm or more of fresh snowAll months
- Time zone
- UTC−6America/Boise
How the score comes together
- Temperatureweight 50 %19 %
- Sunshineweight 20 %78 %
- Few rainy daysweight 30 %67 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.
What to pack in April
- Sunscreen
- Sunglasses & sun hat
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Sun Valley (Ketchum), Idaho in April: quick answers
Is Sun Valley (Ketchum), Idaho hot in April?
No. In April, Sun Valley (Ketchum), Idaho is cold: daytime highs average 8 °C and nights drop to about −4 °C.
Does it rain much in Sun Valley (Ketchum), Idaho in April?
Rain falls on about 9 days, adding up to 36 mm.
Sun Valley (Ketchum), Idaho month by month
The whole year in Sun Valley (Ketchum), IdahoAll destinations: USAWhere to go in April
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences