Sun Valley weather by month
The best time to visit Sun Valley, United States is March. Pick a month for full climate normals and a verdict.
- Januaryfreezing, a little rain, clean air80tier A
- Februaryfreezing, a little rain, clean air83tier A
- Marchcold, a little rain, very humid96tier S
- Aprilcold, a little rain, reliable snow92tier S
- Maycool, a little rain, reliable snow67tier C
- Junenice, a little rain, clean air28tier F
- Julywarm, dry, clean air15tier F
- Augustwarm, a little rain, clean air17tier F
- Septembernice, a little rain, clean air22tier F
- Octobercold, a little rain, clean air64tier C
- Novembercold, a little rain, clean air87tier A
- Decemberfreezing, a little rain, clean air78tier B