| 50° | - April 01
- Average high: 11°
- Average low: 2°
- Record high: 26° (1986)
- Record low: -12° (1923)
- Average precip: 0.23 cm
| - April 02
- Average high: 11°
- Average low: 2°
- Record high: 28° (1963)
- Record low: -10° (1881)
- Average precip: 0.23 cm
| - April 03
- Average high: 12°
- Average low: 2°
- Record high: 26° (1999)
- Record low: -10° (1954)
- Average precip: 0.23 cm
| - April 04
- Average high: 12°
- Average low: 2°
- Record high: 24° (1921)
- Record low: -13° (1874)
- Average precip: 0.23 cm
| - April 05
- Average high: 12°
- Average low: 2°
- Record high: 27° (1929)
- Record low: -12° (1881)
- Average precip: 0.23 cm
| - April 06
- Average high: 12°
- Average low: 2°
- Record high: 30° (1929)
- Record low: -10° (1868)
- Average precip: 0.23 cm
| - April 07
- Average high: 12°
- Average low: 3°
- Record high: 30° (1871)
- Record low: -8° (1982)
- Average precip: 0.23 cm
| - April 08
- Average high: 13°
- Average low: 3°
- Record high: 27° (1875)
- Record low: -11° (1886)
- Average precip: 0.23 cm
| - April 09
- Average high: 13°
- Average low: 3°
- Record high: 26° (1887)
- Record low: -9° (1868)
- Average precip: 0.25 cm
| - April 10
- Average high: 13°
- Average low: 3°
- Record high: 30° (1930)
- Record low: -7° (1989)
- Average precip: 0.25 cm
| - April 11
- Average high: 13°
- Average low: 3°
- Record high: 30° (1977)
- Record low: -7° (1920)
- Average precip: 0.25 cm
| - April 12
- Average high: 14°
- Average low: 4°
- Record high: 29° (1977)
- Record low: -7° (1940)
- Average precip: 0.25 cm
| - April 13
- Average high: 14°
- Average low: 4°
- Record high: 29° (1977)
- Record low: -8° (1885)
- Average precip: 0.25 cm
| - April 14
- Average high: 14°
- Average low: 4°
- Record high: 30° (1883)
- Record low: -7° (1869)
- Average precip: 0.25 cm
| - April 15
- Average high: 14°
- Average low: 4°
- Record high: 29° (2003)
- Record low: -6° (1943)
- Average precip: 0.25 cm
| - April 16
- Average high: 14°
- Average low: 4°
- Record high: 29° (2002)
- Record low: -8° (1875)
- Average precip: 0.25 cm
| - April 17
- Average high: 15°
- Average low: 4°
- Record high: 29° (1964)
- Record low: -9° (1875)
- Average precip: 0.25 cm
| - April 18
- Average high: 15°
- Average low: 5°
- Record high: 29° (2004)
- Record low: -13° (1887)
- Average precip: 0.25 cm
| - April 19
- Average high: 15°
- Average low: 5°
- Record high: 28° (2005)
- Record low: -12° (1875)
- Average precip: 0.25 cm
| - April 20
- Average high: 16°
- Average low: 5°
- Record high: 28° (1985)
- Record low: -7° (1897)
- Average precip: 0.25 cm
| - April 21
- Average high: 16°
- Average low: 6°
- Record high: 29° (1985)
- Record low: -4° (1919)
- Average precip: 0.25 cm
| - April 22
- Average high: 16°
- Average low: 6°
- Record high: 31° (1980)
- Record low: -5° (1936)
- Average precip: 0.25 cm
| - April 23
- Average high: 16°
- Average low: 6°
- Record high: 32° (1925)
- Record low: -5° (1930)
- Average precip: 0.25 cm
| - April 24
- Average high: 17°
- Average low: 6°
- Record high: 31° (1925)
- Record low: -4° (1919)
- Average precip: 0.25 cm
| - April 25
- Average high: 17°
- Average low: 6°
- Record high: 32° (1990)
- Record low: -5° (1918)
- Average precip: 0.25 cm
| - April 26
- Average high: 17°
- Average low: 7°
- Record high: 29° (1990)
- Record low: -3° (1933)
- Average precip: 0.25 cm
| - April 27
- Average high: 17°
- Average low: 7°
- Record high: 29° (1990)
- Record low: -6° (1933)
- Average precip: 0.25 cm
| - April 28
- Average high: 17°
- Average low: 7°
- Record high: 31° (1986)
- Record low: -3° (1946)
- Average precip: 0.25 cm
| - April 29
- Average high: 18°
- Average low: 7°
- Record high: 28° (1914)
- Record low: -3° (1874)
- Average precip: 0.25 cm
| - April 30
- Average high: 18°
- Average low: 7°
- Record high: 31° (1942)
- Record low: -4° (1931)
- Average precip: 0.25 cm
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