| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 33.1 | 24.2 | 62 | -14 | 1.7 | 7.8 |
| February | 40.6 | 26.7 | 63 | -1 | 1.2 | 2.0 |
| March | 51.1 | 33.0 | 72 | 8 | 1.0 | 0.6 |
| April | 61.1 | 40.3 | 88 | 21 | 0.7 | 0.0 |
| May | 70.9 | 48.7 | 98 | 32 | 1.0 | 0.0 |
| June | 77.0 | 55.5 | 111 | 33 | 0.8 | 0.0 |
| July | 85.7 | 61.6 | 109 | 37 | 0.4 | 0.0 |
| August | 85.8 | 60.5 | 106 | 42 | 0.3 | 0.0 |
| September | 76.1 | 51.5 | 97 | 26 | 0.3 | 0.0 |
| October | 61.2 | 41.3 | 88 | 3 | 1.0 | 0.0 |
| November | 44.8 | 31.9 | 72 | -3 | 1.4 | 1.8 |
| December | 34.6 | 25.8 | 69 | -18 | 2.0 | 8.1 |
| Entire year | 60.3 | 41.8 | 111 | -18 | 11.9 | 20.8 |
|
More Chelan Weather Records
1890–2024
|
||
|---|---|---|
| Highest daily low | 78 °F | July 19, 1960 |
| Lowest daily high | -7 °F | December 30, 1968 |
| Greatest daily range (Difference of high and low) |
54 °F | August 16, 2023 |
| Greatest difference in daily high over two conscutive days |
30 °F | Jan 12–13, 2024 |
| Most daily precipitation | 1.9 inches | June 21, 1984 |
| Most monthly precipitation | 6.2 inches | November 1983 |
| Most yearly precipitation | 21.1 inches | 1983 |
| Most yearly days with precipitation | 98 | 1998 |
| Earliest snow in season | October 25 | 2023 |
| Latest snow in season | April 5 | 1975 |
| Most daily snow | 16.0 inches | December 9, 1971 |
| Most monthly snow | 44.5 inches | December 1971 |
| Most yearly snow | 77.1 inches | 1971 |
| Most snow in a winter | 79.4 inches | 1968–1969 |
| Greatest snow accumulation | 32.0 inches | January 15, 1971 |
| Earliest freeze | September 20 | 1983 |
| Earliest day ≥ 80 °F | April 16 | 1988 |
| Earliest day ≥ 90 °F | May 9 | 2013 |
| Earliest day ≥ 100 °F | June 22 | 1958 |
| Latest freeze | April 30 | 2019 |
| Latest day ≥ 80 °F | October 8 | 1979 |
| Latest day ≥ 90 °F | September 26 | 2009 |
| Latest day ≥ 100 °F | August 25 | 1958 |
| Most days in a year < 0 °F | 8 | 2022 |
| Most days in a year < 32 °F | 134 | 2019 |
| Most days in a year ≥ 80 °F | 115 | 2023 |
| Most days in a year ≥ 90 °F | 52 | 2021 |
| Most days in a year ≥ 100 °F | 12 | 2021 |
| Most days in a year ≥ 110 °F | 1 | 2021 |
|
Chelan Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 13 days | Nov 5–17, 2006 |
| Without precipitation | 102 days | Jul 18 – Oct 27, 1974 |
| With snow | 6 days | Jan 12–17, 1980 |
| High temperature at or below freezing |
26 days | Dec 26, 1992 – Jan 20, 1993 |
| High temperature ≥ 80 °F | 63 days | Jun 23 – Aug 24, 2017 |
| High temperature ≥ 90 °F | 19 days | Jul 17 – Aug 4, 1971 |
| High temperature ≥ 100 °F | 7 days | Jul 4–10, 1985 |
| Years | Station | Coordinates |
|---|---|---|
| 1890–2024 | Chelan | location |