How cold is the Main Salmon River?
Measured at Shoup, approximately 30 miles upriver from the Main Salmon put-in, this river gauge has water temperature data from 2016. During the summer months, the average water temperature on the Main Salmon reaches as high as 67 degrees. Below, you’ll find the average water temperature by month. All temperatures were measured in Celsius and converted to Fahrenheit.
- January: 32 degrees
- February: 32 degrees
- March: 39 degrees
- April: 48 degrees
- May: 52 degrees
- June: 58 degrees
- July: 67 degrees
- August: 67 degrees
- September: 59 degrees
- October: 48 degrees
- November: 37 degrees
- December: 32 degrees
Average highs and lows at Shoup, ID
Taken at Shoup, Idaho the average monthly highs and lows for air temperature are below.
- January: 31° / 16°
- February: 38° / 19°
- March: 51° / 28°
- April: 62° / 34°
- May: 70° / 40°
- June: 79° / 46°
- July: 89° / 52°
- August: 88° / 51°
- September: 77° / 42°
- October: 60° / 34°
- November: 41° / 26°
- December: 29° / 16°