|
Typical Ketchum December Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 31.0 °F | |
| Average daily low | 8.8 °F | |
| Average monthly precipitation | 2.8 inches | |
| Average monthly snow | 29.6 inches | |
|
Ketchum December Weather Records 1937–2023 |
||
|---|---|---|
| Highest temperature | 60 °F | December 5, 1939 |
| Lowest temperature | -37 °F | December 22, 1990 |
| Highest daily low | 34 °F | December 1, 1995 |
| Lowest daily high | -6 °F | December 23, 1990 |
| Hottest average temperature | 7.8 °F above average |
1939 |
| Coldest average temperature | -12.4 °F below average |
1990 |
| Most daily precipitation | 2.3 inches | December 11, 1937 |
| Most monthly precipitation | 11.4 inches | 1964 |
| Most daily snow | 26.0 inches | December 7, 1952 |
| Most monthly snow | 96.9 inches | 1964 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| December 1 | 35.4 | 12.4 | 59 | -12 |
| December 2 | 35.1 | 12.0 | 55 | -13 |
| December 3 | 34.7 | 11.7 | 56 | -22 |
| December 4 | 34.4 | 11.3 | 60 | -10 |
| December 5 | 33.9 | 11.0 | 60 | -23 |
| December 6 | 33.5 | 10.7 | 54 | -19 |
| December 7 | 33.1 | 10.5 | 54 | -17 |
| December 8 | 32.7 | 10.2 | 50 | -28 |
| December 9 | 32.4 | 10.0 | 48 | -24 |
| December 10 | 32.1 | 9.8 | 48 | -27 |
| December 11 | 31.9 | 9.5 | 45 | -32 |
| December 12 | 31.6 | 9.3 | 49 | -22 |
| December 13 | 31.4 | 9.1 | 46 | -22 |
| December 14 | 31.2 | 8.9 | 48 | -21 |
| December 15 | 31.0 | 8.8 | 46 | -20 |
| December 16 | 30.9 | 8.7 | 55 | -20 |
| December 17 | 30.7 | 8.5 | 56 | -37 |
| December 18 | 30.5 | 8.2 | 48 | -25 |
| December 19 | 30.4 | 8.1 | 46 | -20 |
| December 20 | 30.3 | 8.1 | 50 | -18 |
| December 21 | 30.3 | 8.0 | 46 | -25 |
| December 22 | 30.3 | 7.9 | 44 | -37 |
| December 23 | 30.3 | 7.8 | 45 | -36 |
| December 24 | 30.3 | 7.8 | 49 | -30 |
| December 25 | 30.4 | 7.7 | 47 | -26 |
| December 26 | 30.4 | 7.8 | 50 | -28 |
| December 27 | 30.4 | 7.8 | 52 | -24 |
| December 28 | 30.4 | 7.7 | 47 | -17 |
| December 29 | 30.4 | 7.6 | 43 | -21 |
| December 30 | 30.3 | 7.5 | 48 | -26 |
| December 31 | 30.3 | 7.5 | 46 | -26 |