| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 32.0 | 7.5 | 54 | -42 | 2.1 | 27.1 |
| February | 35.7 | 10.9 | 56 | -46 | 1.7 | 18.1 |
| March | 43.3 | 18.2 | 67 | -28 | 1.8 | 10.6 |
| April | 52.7 | 26.4 | 79 | -4 | 1.2 | 3.6 |
| May | 62.6 | 34.3 | 89 | 5 | 1.7 | 0.2 |
| June | 69.9 | 39.4 | 97 | 17 | 1.5 | 0.0 |
| July | 80.8 | 44.5 | 98 | 14 | 0.5 | 0.0 |
| August | 79.4 | 42.6 | 96 | 16 | 0.5 | 0.0 |
| September | 70.0 | 35.6 | 93 | 11 | 0.7 | 0.0 |
| October | 56.4 | 27.1 | 85 | -3 | 1.4 | 1.6 |
| November | 41.7 | 16.8 | 69 | -25 | 1.2 | 10.1 |
| December | 31.0 | 8.8 | 60 | -37 | 2.7 | 29.7 |
| Entire year | 54.7 | 26.1 | 98 | -46 | 17.2 | 104.6 |
|
More Ketchum Weather Records
1937–2024
|
||
|---|---|---|
| Highest daily low | 62 °F | July 24, 2007 |
| Lowest daily high | -6 °F | December 23, 1990 |
| Greatest daily range (Difference of high and low) |
66 °F | September 7, 1944 |
| Greatest difference in daily high over two conscutive days |
31 °F | Feb 3–4, 2007 |
| Most daily precipitation | 2.8 inches | March 11, 1995 |
| Most monthly precipitation | 11.4 inches | December 1964 |
| Most yearly precipitation | 28.0 inches | 1983 |
| Most yearly days with precipitation | 124 | 1983 |
| Earliest snow in season | September 16 | 1965 |
| Latest snow in season | May 27 | 1998 |
| Most daily snow | 38.0 inches | February 11, 1959 |
| Most monthly snow | 97.0 inches | December 1964 |
| Most yearly snow | 230.5 inches | 1952 |
| Most snow in a winter | 244.5 inches | 1951–1952 |
| Greatest snow accumulation | 85.0 inches | January 16, 1952 |
| Earliest freeze | August 1 | 1985 |
| Earliest day ≥ 70 °F | April 3 | 1990 |
| Earliest day ≥ 80 °F | May 2 | 1947 |
| Earliest day ≥ 90 °F | June 17 | 1974 |
| Latest freeze | July 31 | 1945 |
| Latest day ≥ 70 °F | October 30 | 1962 |
| Latest day ≥ 80 °F | October 10 | 1971 |
| Latest day ≥ 90 °F | September 8 | 2022 |
| Most days in a year < 0 °F | 77 | 1943 |
| Most days in a year < 32 °F | 319 | 1942 |
| Most days in a year ≥ 80 °F | 79 | 1966 |
| Most days in a year ≥ 90 °F | 16 | 2003 |
|
Ketchum Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 13 days | May 4–16, 1995 |
| Without precipitation | 89 days | Apr 13 – Jul 10, 1974 |
| With snow | 11 days | Feb 13–23, 1986 |
| High temperature at or below freezing |
30 days | Jan 14 – Feb 12, 1949 |
| High temperature ≥ 80 °F | 44 days | Jul 17 – Aug 29, 1969 |
| High temperature ≥ 90 °F | 9 days | Jul 15–23, 1960 |