Wisconsin State Climatology Office

MONTHLY HISTORICAL STATE CLIMATE SUMMARIES

 Statewide Average Temperature (degrees Fahrenheit)
[Source: NOAA National Climatic Data Center]

Note: Data for the most recent 6 months are considered preliminary and subject to change.

Year

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

YEAR

1895

8.8

10.1

26.1

46.5

56.8

67.0

67.2

67.7

63.6

40.9

29.9

23.8

42.4

1896

17.2

19.0

22.5

45.0

62.1

66.2

69.2

68.1

54.8

43.1

26.6

27.3

43.4

1897

14.0

20.5

25.6

42.9

53.4

62.6

71.9

64.0

64.4

51.7

29.0

15.1

42.9

1898

19.8

19.4

32.8

42.5

54.9

66.1

70.0

66.4

61.3

44.2

30.8

14.2

43.5

1899

12.5

7.9

19.0

46.2

55.0

65.5

69.7

69.6

56.2

51.1

39.0

19.9

42.6

1900

20.3

9.9

23.6

47.0

58.3

65.0

68.0

73.5

60.0

55.4

29.1

22.2

44.4

1901

16.3

10.6

27.0

45.7

55.1

66.8

74.7

68.5

58.3

49.7

30.7

16.4

43.3

1902

17.2

15.7

34.9

43.2

57.2

61.4

70.0

64.6

55.9

48.5

38.2

16.3

43.6

1903

14.6

16.0

35.5

44.2

55.9

61.8

68.5

63.1

57.6

47.2

28.7

11.4

42.0

1904

6.7

5.9

26.9

38.3

55.2

63.3

66.5

63.7

58.8

47.7

36.3

17.8

40.6

1905

7.0

9.7

32.3

42.6

52.8

63.7

67.5

67.7

61.3

45.5

33.2

22.7

42.2

1906

20.3

15.8

23.0

46.6

54.1

64.0

68.1

69.5

63.2

46.5

32.9

21.3

43.8

1907

11.5

18.0

32.4

35.4

46.9

63.1

67.9

64.8

58.0

44.8

32.4

22.8

41.5

1908

19.0

19.2

30.3

44.2

55.3

63.2

69.8

66.1

64.4

48.5

34.5

19.5

44.5

1909

16.4

19.7

27.2

36.9

52.3

64.5

68.1

70.1

56.9

44.0

38.4

14.0

42.4

1910

13.6

12.6

40.7

46.8

50.4

66.4

70.9

67.2

57.5

50.4

27.2

16.5

43.4

1911

13.9

22.1

32.3

41.6

59.6

69.0

69.1

64.8

57.9

44.8

25.3

25.0

43.8

1912

-4.0

11.0

20.5

44.2

55.1

62.3

68.2

63.0

59.1

48.2

34.2

23.5

40.4

1913

14.8

11.0

24.1

44.6

52.7

66.3

67.7

67.5

58.2

45.5

37.7

28.4

43.2

1914

21.4

7.7

27.0

41.1

57.0

63.5

71.0

66.2

58.8

52.6

33.4

13.1

42.7

1915

11.6

24.2

26.4

51.2

49.9

59.3

64.6

61.3

58.8

48.1

34.1

20.3

42.5

1916

14.5

11.9

23.8

41.8

53.5

59.1

75.0

68.9

56.4

45.9

31.0

12.9

41.2

1917

8.3

5.3

26.7

39.2

49.6

59.6

69.3

63.6

56.4

37.3

35.0

10.7

38.4

1918

2.6

14.5

34.2

39.5

57.3

63.3

67.2

68.6

52.3

48.8

35.6

27.0

42.6

1919

20.8

19.1

30.0

42.3

53.2

68.8

71.1

65.8

60.6

45.5

28.5

8.9

42.9

1920

5.9

14.1

29.3

36.9

53.4

65.3

66.1

65.0

61.6

54.0

31.3

23.2

42.2

1921

21.3

22.7

33.1

48.0

57.4

69.5

75.4

67.3

62.3

48.1

28.0

20.0

46.1

1922

11.8

14.4

32.9

42.3

60.1

65.5

66.5

67.7

61.2

49.5

37.8

17.3

43.9

1923

16.7

9.1

20.4

40.0

54.1

67.9

70.7

64.1

58.7

45.4

36.1

29.0

42.7

1924

5.2

18.9

26.5

41.0

47.7

60.5

65.6

64.7

54.1

52.7

32.6

10.3

40.0

1925

13.8

20.1

31.4

48.0

51.0

65.1

67.6

67.8

61.9

37.2

30.7

15.1

42.5

1926

15.0

20.0

21.7

38.9

56.2

60.1

68.2

66.3

56.1

44.3

27.1

15.0

40.7

1927

11.8

22.5

34.0

42.5

51.3

61.0

66.5

62.0

61.2

49.4

31.7

12.8

42.2

1928

16.4

19.0

28.4

37.0

56.1

59.6

68.7

67.0

55.0

48.6

34.7

23.6

42.8

1929

2.2

8.7

31.7

44.5

51.3

61.7

69.4

65.7

58.0

46.6

28.3

19.0

40.6

1930

7.5

23.9

29.2

44.4

55.8

65.8

70.4

69.1

59.6

45.7

35.6

21.0

44.0

1931

22.5

27.8

29.4

45.1

52.7

68.5

72.6

66.7

64.8

51.8

39.8

28.9

47.6

1932

21.5

19.8

21.2

41.4

55.3

66.9

70.3

68.4

57.2

44.4

28.6

17.1

42.7

1933

23.3

12.9

27.5

40.9

55.5

72.0

71.6

65.9

63.2

44.3

29.2

17.0

43.6

1934

21.7

13.9

25.5

41.7

61.8

68.7

71.1

64.9

56.8

49.9

37.0

15.5

44.0

1935

10.9

20.3

30.9

40.9

50.4

60.3

74.0

68.0

58.0

46.7

29.5

18.1

42.3

1936

7.6

1.2

29.5

37.0

59.5

62.3

74.8

69.8

61.9

43.8

29.1

22.2

41.6

1937

10.1

15.1

24.9

40.7

56.0

63.9

71.6

72.7

59.6

43.8

30.1

16.7

42.1

1938

13.5

22.0

35.2

44.3

54.3

63.9

69.5

70.0

58.6

52.1

33.2

19.8

44.7

1939

20.4

12.7

27.7

39.9

59.0

65.6

71.0

67.7

61.4

47.0

34.5

27.7

44.6

1940

8.4

19.8

22.6

40.0

51.9

64.1

70.5

66.1

60.5

50.0

29.7

21.7

42.1

1941

17.6

16.3

24.3

49.1

59.4

66.0

70.6

68.0

61.2

48.6

35.8

26.8

45.3

1942

17.2

17.6

32.9

49.0

53.3

64.1

68.3

66.9

56.2

47.8

32.4

15.1

43.4

1943

10.4

17.4

22.0

40.7

53.3

67.3

71.4

68.7

54.9

47.4

28.7

21.5

42.0

1944

24.5

20.2

25.2

39.8

58.9

67.0

68.6

69.1

59.8

48.0

38.0

17.2

44.7

1945

11.6

17.5

39.0

43.2

50.0

59.7

66.9

67.3

58.0

45.8

32.0

14.7

42.1

1946

17.2

17.0

39.4

46.4

52.7

63.6

69.4

65.3

58.2

50.9

33.9

21.4

44.6

1947

19.3

14.5

26.7

40.1

49.8

61.4

68.7

74.1

60.5

56.7

27.5

19.5

43.2

1948

9.0

15.1

27.0

47.3

53.7

64.0

70.5

69.1

63.1

47.3

36.0

20.1

43.5

1949

17.4

16.3

28.2

44.3

57.0

68.5

72.0

69.3

55.4

51.0

34.0

20.8

44.5

1950

12.9

16.3

23.1

35.2

53.6

64.4

66.0

62.8

58.1

51.8

28.1

12.7

40.4

1951

10.9

16.9

24.3

40.9

58.6

61.4

68.1

64.0

55.4

47.5

24.7

17.5

40.9

1952

15.5

22.6

25.7

46.3

54.5

66.5

70.7

66.0

59.4

42.1

34.8

24.2

44.0

1953

19.0

18.4

30.0

39.5

55.0

66.7

69.1

69.0

59.2

53.3

37.6

22.8

45.0

1954

13.5

28.4

26.8

44.9

49.5

67.3

69.5

65.8

58.2

46.6

35.6

21.9

44.0

1955

14.2

15.9

25.4

49.8

58.3

64.1

74.4

72.1

59.8

49.2

27.7

14.5

43.8

1956

16.1

16.2

24.6

39.9

53.9

67.5

66.0

67.0

56.0

53.6

32.6

22.0

43.0

1957

8.5

20.2

28.9

44.2

53.7

64.5

71.1

67.0

56.9

46.1

32.2

23.0

43.0

1958

18.8

13.7

30.3

44.4

55.2

60.0

67.1

67.7

59.7

50.3

34.7

12.8

42.9

1959

7.7

13.1

27.4

43.4

59.0

66.4

68.8

71.4

60.4

43.7

24.2

27.5

42.8

1960

17.8

18.6

19.3

44.8

53.8

61.9

67.7

68.7

60.6

47.8

35.5

17.7

42.9

1961

14.0

24.6

32.1

39.3

52.4

65.0

68.6

68.6

59.4

49.4

32.7

17.2

43.6

1962

9.7

14.0

27.7

41.9

59.2

63.7

65.9

66.8

55.7

49.9

34.4

18.5

42.3

1963

4.1

10.7

30.9

45.6

53.2

66.6

70.4

65.5

59.3

57.0

37.9

11.2

42.7

1964

20.6

21.2

26.9

44.2

59.7

65.0

71.5

64.8

57.4

46.1

35.9

15.3

44.1

1965

11.2

13.1

21.4

40.3

58.4

63.0

67.0

65.4

54.7

48.4

32.9

26.6

41.9

1966

6.3

17.5

32.8

40.2

50.5

65.8

71.8

65.3

57.7

46.9

32.3

19.2

42.2

1967

17.2

10.5

29.1

43.2

49.7

64.8

66.8

63.4

57.5

46.1

29.9

21.5

41.6

1968

14.6

14.9

36.6

45.6

52.2

64.0

68.1

67.4

59.2

49.7

33.3

18.6

43.7

1969

12.0

19.2

24.3

45.2

55.8

57.9

68.4

69.8

58.8

44.7

31.6

20.5

42.4

1970

7.1

15.5

25.7

44.1

55.4

66.2

71.0

68.0

59.0

49.3

32.2

18.9

42.7

1971

7.1

16.0

25.2

42.7

52.0

68.1

66.0

64.9

60.8

54.0

33.6

21.4

42.7

1972

8.3

12.5

24.4

38.7

58.4

62.6

67.1

67.0

57.3

43.7

31.9

14.6

40.5

1973

18.1

20.3

38.0

41.9

51.3

66.1

69.9

69.3

58.4

52.8

33.4

18.2

44.8

1974

14.2

15.7

28.9

44.4

51.5

61.3

71.0

65.3

53.7

47.0

34.6

24.0

42.6

1975

16.4

17.5

23.4

37.1

58.6

64.7

70.7

67.5

54.5

49.8

37.7

19.9

43.2

1976

10.7

24.5

30.0

46.1

52.8

66.8

70.3

66.8

56.9

41.9

25.3

9.1

41.8

1977

1.2

19.1

36.1

48.8

63.0

63.2

71.2

63.2

58.4

46.2

32.2

16.5

43.3

1978

8.4

10.4

26.4

41.4

56.5

63.6

67.0

67.3

62.1

46.4

31.4

15.1

41.3

1979

3.2

8.7

28.0

39.8

51.9

63.2

68.5

65.1

59.7

44.8

31.9

24.9

40.8

1980

14.4

14.7

25.2

44.8

57.7

63.3

70.5

67.8

57.7

42.6

33.9

18.4

42.6

1981

15.7

21.8

33.3

45.7

53.3

64.4

68.5

67.1

56.6

43.9

36.2

19.2

43.8

1982

3.9

15.1

27.3

39.3

59.2

58.8

69.9

65.0

57.0

48.3

31.7

26.0

41.8

1983

19.4

25.7

31.8

39.7

50.0

64.6

73.1

71.3

59.4

47.3

34.7

7.4

43.7

1984

11.8

27.6

24.0

44.5

52.1

66.0

67.9

69.5

56.2

49.7

32.8

20.7

43.6

1985

10.7

15.1

34.3

47.9

58.8

61.3

68.1

64.4

58.3

46.7

27.2

8.1

41.7

1986

15.8

16.8

32.7

48.3

57.7

64.3

70.6

63.8

58.6

47.1

28.8

23.0

44.0

1987

19.9

27.4

35.3

48.6

58.3

68.0

71.9

66.5

59.4

41.5

36.6

25.4

46.6

1988

10.4

12.9

30.7

43.9

59.4

68.5

72.6

71.0

59.5

41.3

34.2

19.3

43.6

1989

21.5

10.4

25.0

41.4

54.1

62.8

70.5

67.2

57.5

48.0

28.7

9.1

41.4

1990

24.7

20.9

33.6

45.6

51.7

64.9

67.9

66.9

60.4

45.2

37.3

18.3

44.8

1991

11.2

22.4

32.2

46.7

59.5

68.3

68.6

68.4

56.6

45.4

26.8

21.7

44.0

1992

20.6

25.6

30.2

40.4

56.1

61.6

63.4

62.9

56.6

45.2

30.9

21.3

42.9

1993

15.6

17.1

28.7

39.8

54.6

61.4

68.0

68.1

52.7

44.2

30.7

22.7

42.0

1994

4.4

11.8

31.7

43.4

55.3

66.4

67.1

64.2

61.2

49.5

36.8

25.8

43.1

1995

17.2

18.0

32.4

38.4

53.7

68.3

70.0

71.9

56.5

47.3

24.8

16.6

42.9

1996

10.4

16.0

23.3

38.7

51.4

64.3

65.8

67.3

58.8

46.8

26.2

18.2

40.6

1997

12.0

21.1

29.2

41.1

49.2

66.0

67.8

63.8

59.5

47.4

30.1

26.6

42.8

1998

20.6

31.8

31.5

46.9

60.7

63.4

69.4

68.9

63.0

48.9

37.4

25.8

47.4

1999

12.3

26.8

31.9

46.4

58.1

65.3

72.5

65.9

58.0

45.6

40.0

23.0

45.5

2000

15.3

25.4

37.9

42.8

56.8

62.7

67.6

67.5

58.1

50.3

32.7

9.1

43.9

2001

19.5

15.0

28.1

46.6

56.7

64.3

69.9

69.8

57.2

46.0

43.5

27.8

45.4

2002

24.3

26.5

24.6

42.9

50.6

66.1

72.7

67.5

61.5

41.9

31.6

24.4

44.6

2003

14.0

13.9

29.1

42.4

53.4

62.8

68.5

70.1

59.3

46.4

33.1

25.1

43.2

2004

10.9

20.9

33.6

44.4

52.7

61.8

66.8

62.1

62.8

47.8

37.0

20.7

43.5

2005

14.3

24.5

27.3

47.5

52.2

69.0

70.6

68.1

63.0

49.4

34.8

18.6

44.9

2006

28.0

18.4

31.7

48.8

56.0

64.8

72.7

68.0

56.2

42.6

36.6

27.4

45.9

2007

20.6 11.8 34.6 42.6 58.7 66.7 69.3 68.4 60.9 52.3 33.2 17.4 44.7

2008

15.0 13.3 25.4 42.8 51.7 64.1 68.8 66.3 60.4 46.4 33.5 13.0 41.7

2009

 6.4 20.5 30.0 42.9 54.7 63.3 63.7 64.7 61.5 42.4 40.3 18.9 42.4

115-yr Period of Record (1895-2009)

AVE

13.8

17.1

28.7

43.1

54.8

64.4

69.3

67.0

58.8

47.4

32.7

19.4

43.0

MEDIAN

14.2

16.9

28.4

42.9

54.7

64.4

69.3

67.2

58.7

47.3

32.8

19.5

42.9

STD

5.78

5.45

4.57

3.35

3.31

2.67

2.34

2.47

2.54

3.54

3.82

5.07

1.49

MAX

28.0

31.8

40.7

51.2

63.0

72.0

75.4

74.1

64.8

57.0

43.5

29.0

47.6

MIN

-4.0

1.2

19.0

35.2

46.9

57.9

63.4

61.3

52.3

37.2

24.2

7.4

38.4

30-yr normals (1971-2000)

AVE

13.2

19.0

30.1

43.2

55.5

64.5

69.1

66.9

58.1

46.6

32.4

19.0

43.1

MEDIAN

13.3

17.8

30.5

43.1

55.7

64.4

69.0

67.1

58.2

46.8

32.5

19.6

43.0

STD

5.77

5.87

4.16

3.38

3.53

2.41

2.19

2.31

2.25

3.00

3.87

5.67

1.60

MAX

24.7

31.8

38.0

48.8

63.0

68.5

73.1

71.9

63.0

54.0

40.0

26.6

47.4

MIN

1.2

8.7

23.3

37.1

49.2

58.8

63.4

62.9

52.7

41.3

24.8

7.4

40.5

Note: Data for the most recent 6 months are considered preliminary and subject to change.

Statewide Average Annual Temperature Graphic (1895-present)


Highest State Temperatures (degrees Fahrenheit) by Year
[
 List] / [Graphic]

Lowest State Temperatures (degrees Fahrenheit)
by Year [
List] /[ Graphic]
by Winter Season [Graphic]

All-time Temperature Extremes for each station in state (since 1893) [ List ]

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Latest revision: 27 January 2010

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