| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 30.2 | 9.6 | 74 | -29 | 0.6 | 6.4 |
| February | 35.0 | 13.1 | 78 | -28 | 0.9 | 8.0 |
| March | 47.1 | 24.4 | 93 | -25 | 1.5 | 5.4 |
| April | 60.1 | 35.0 | 95 | 2 | 3.2 | 3.7 |
| May | 71.9 | 47.8 | 107 | 24 | 3.5 | 0.2 |
| June | 82.4 | 58.7 | 110 | 33 | 3.8 | 0.0 |
| July | 86.8 | 62.9 | 116 | 41 | 3.3 | 0.0 |
| August | 84.5 | 61.0 | 112 | 35 | 3.0 | 0.0 |
| September | 77.4 | 51.0 | 105 | 23 | 2.8 | 0.0 |
| October | 63.5 | 38.1 | 96 | 11 | 2.5 | 0.8 |
| November | 47.2 | 24.3 | 83 | -15 | 1.2 | 5.5 |
| December | 34.0 | 14.2 | 70 | -31 | 0.9 | 8.1 |
| Entire year | 60.0 | 36.8 | 116 | -31 | 27.0 | 38.8 |
|
More Yankton Weather Records
1932–2024
|
||
|---|---|---|
| Highest daily low | 86 °F | July 21, 1934 |
| Lowest daily high | -19 °F | December 22, 1989 |
| Greatest daily range (Difference of high and low) |
73 °F | March 16, 1934 |
| Greatest difference in daily high over two conscutive days |
58 °F | Feb 1–2, 1989 |
| Most daily precipitation | 6.2 inches | June 22, 1941 |
| Most monthly precipitation | 11.7 inches | May 1972 |
| Most yearly precipitation | 39.2 inches | 2010 |
| Most yearly days with precipitation | 113 | 1951 |
| Earliest snow in season | October 10 | 2009 |
| Latest snow in season | May 10 | 1945 |
| Most daily snow | 16.0 inches | January 20, 1988 |
| Most monthly snow | 29.5 inches | December 2009 |
| Most yearly snow | 68.0 inches | 2018 |
| Most snow in a winter | 70.5 inches | 2015–2016 |
| Greatest snow accumulation | 29.0 inches | January 10, 2010 |
| Earliest freeze | September 3 | 1974 |
| Earliest day ≥ 80 °F | March 7 | 1987 |
| Earliest day ≥ 90 °F | March 30 | 1943 |
| Earliest day ≥ 100 °F | May 17 | 1934 |
| Latest freeze | May 29 | 1947 |
| Latest day ≥ 80 °F | November 9 | 1999 |
| Latest day ≥ 90 °F | October 31 | 1950 |
| Latest day ≥ 100 °F | September 20 | 1984 |
| Most days in a year < 0 °F | 56 | 1978 |
| Most days in a year < 32 °F | 179 | 2013 |
| Most days in a year ≥ 80 °F | 127 | 1956 |
| Most days in a year ≥ 90 °F | 65 | 1936 |
| Most days in a year ≥ 100 °F | 34 | 1936 |
| Most days in a year ≥ 110 °F | 4 | 1936 |
|
Yankton Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 10 days | May 19–28, 1996 |
| Without precipitation | 56 days | Sep 23 – Nov 17, 1952 |
| With snow | 5 days | Mar 11–15, 1962 |
| High temperature at or below freezing |
61 days | Dec 24, 1977 – Feb 22, 1978 |
| High temperature ≥ 80 °F | 74 days | Jun 29 – Sep 10, 1938 |
| High temperature ≥ 90 °F | 27 days | Jul 3–29, 1936 |
| High temperature ≥ 100 °F | 17 days | Jul 4–20, 1936 |
| Years | Station | Coordinates |
|---|---|---|
| 1932–2024 | Yankton 2 E | location |