| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 27.2 | 11.8 | 60 | -33 | 1.9 | 9.5 |
| February | 31.5 | 13.5 | 71 | -32 | 1.4 | 10.7 |
| March | 43.9 | 25.0 | 84 | -18 | 2.0 | 5.1 |
| April | 57.4 | 36.2 | 89 | 8 | 3.7 | 1.8 |
| May | 70.6 | 48.3 | 103 | 20 | 4.1 | 0.1 |
| June | 80.1 | 58.5 | 104 | 29 | 5.5 | 0.0 |
| July | 83.8 | 62.7 | 110 | 40 | 4.3 | 0.0 |
| August | 81.3 | 60.4 | 104 | 34 | 4.4 | 0.0 |
| September | 74.4 | 52.5 | 100 | 24 | 3.5 | 0.0 |
| October | 60.9 | 40.8 | 90 | -3 | 2.8 | 0.2 |
| November | 45.3 | 29.2 | 77 | -13 | 2.1 | 2.0 |
| December | 32.6 | 18.7 | 66 | -24 | 1.9 | 9.9 |
| Entire year | 57.6 | 38.2 | 110 | -33 | 37.9 | 39.3 |
|
More Lake Mills Weather Records
1893–2024
|
||
|---|---|---|
| Highest daily low | 85 °F | July 11, 1921 |
| Lowest daily high | -12 °F | January 31, 2019 |
| Greatest daily range (Difference of high and low) |
60 °F | February 28, 2024 |
| Greatest difference in daily high over two conscutive days |
45 °F | Jan 11–12, 1975 |
| Most daily precipitation | 5.6 inches | August 19, 2007 |
| Most monthly precipitation | 17.8 inches | August 2007 |
| Most yearly precipitation | 49.2 inches | 2018 |
| Most yearly days with precipitation | 139 | 2019 |
| Earliest snow in season | October 10 | 1932 |
| Latest snow in season | May 11 | 1966 |
| Most daily snow | 16.0 inches | January 30, 1947 |
| Most monthly snow | 37.5 inches | December 2000 |
| Most yearly snow | 89.0 inches | 2008 |
| Most snow in a winter | 85.7 inches | 2007–2008 |
| Greatest snow accumulation | 35.0 inches | January 27, 1979 |
| Earliest freeze | September 14 | 1923 |
| Earliest day ≥ 80 °F | March 16 | 2012 |
| Earliest day ≥ 90 °F | May 1 | 1952 |
| Earliest day ≥ 100 °F | May 31 | 1934 |
| Latest freeze | June 4 | 1945 |
| Latest day ≥ 80 °F | October 27 | 1927 |
| Latest day ≥ 90 °F | October 4 | 1897 |
| Latest day ≥ 100 °F | September 7 | 1939 |
| Most days in a year < 0 °F | 42 | 1929 |
| Most days in a year < 32 °F | 174 | 1925 |
| Most days in a year ≥ 80 °F | 107 | 1988 |
| Most days in a year ≥ 90 °F | 53 | 1988 |
| Most days in a year ≥ 100 °F | 10 | 1936 |
| Most days in a year ≥ 110 °F | 1 | 1936 |
|
Lake Mills Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 12 days | Jan 28 – Feb 8, 2013 |
| Without precipitation | 45 days | Jan 4 – Feb 17, 1961 |
| With snow | 7 days | Jan 31 – Feb 6, 2013 |
| High temperature at or below freezing |
52 days | Dec 31, 1978 – Feb 20, 1979 |
| High temperature ≥ 80 °F | 42 days | Jun 27 – Aug 7, 1955 |
| High temperature ≥ 90 °F | 16 days | Jul 13–28, 1901 |
| High temperature ≥ 100 °F | 8 days | Jul 7–14, 1936 |
| Years | Station | Coordinates |
|---|---|---|
| 1893–2024 | Lake Mills Wwtp | location |