Minnesotans For Sustainability

 

Sustainable:  A society that balances the environment, other life forms, and human interactions over an indefinite time period.

 

 

 

Earlier in the Year Snowmelt Runoff and Increasing Dewpoints for Rivers
            in Minnesota, Wisconsin and North Dakota

                        Patrick J. Neuman*

 

 

 

 

Average monthly dewpoint: Fargo,
North Dakota

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yr

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Ann

 

 

 

 

 

 

1 of 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 of 4

1948

-3.5

-0.8

12.7

35.5

40.8

52.9

60.6

57.8

49.6

34.3

25.1

6.7

31.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1949

-1.5

-3.6

17.8

32.5

42.8

53

60

57.7

39.9

36.1

27.7

5.5

30.9

 

 

 

 

 

 

 

 

Mov avgs.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1950

15.5

-1.1

15.4

26.1

41.3

48.3

55.3

50.8

47.1

37

13.9

0.7

26.8

 

Mean Dewpoint (F)

 

 

 

   Annual

 

 

 

Mean Dewpoint (F)

 

 

 

 

 

 

 

 

 

 

1951

-5.2

9.3

10.9

31.8

40.9

49.7

56.7

55.9

45.3

35.9

16.1

1.2

29.1

 

 

 

 

 

 

10yr

 

 

5 yr

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1952

-4.7

12.8

15.8

34.9

37.8

52.9

57.1

55.2

45.4

24.5

21.7

14.4

30.7

 

 

 

 

 

 

 

 

1952

29.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1953

5

10.6

21.5

27

41.6

56.7

58.1

59.8

44.3

38.8

24.8

10.3

33.3

 

 

 

 

 

 

 

 

1953

30.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1954

-9.5

21.5

17.6

28.2

35.6

53.2

59.7

56.4

47.7

35

25.1

15.5

32.2

 

10 yr dewpoint averages

 

 

1954

30.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1955

3.7

-0.1

10.8

36.2

42.2

54.3

64

58.6

44.2

32.8

11.3

-1.7

29.9

 

 

 

 

 

 

 

 

1955

31

 

 

 

 

10 year moving averages

 

 

10 year moving averages

 

1956

-0.3

-0.6

14.1

25.6

39.1

57

57.4

55.8

42.4

35.6

24.5

10.7

30.2

 

Jan

Feb

Mar

Apr

 

 

 

1956

31.3

 

May

 

Jun

 

Jul

 

Aug

 

Sep

 

Oct

 

Nov

 

Dec

 

1957

-4.5

6.8

19.2

30.1

39.1

52.3

63.5

57.5

47

38.3

24

13.6

32.4

1957

-3.6

5.48

15.6

30.8

1957

30.7

 

1957

31.6

1957

40.1

1957

53

1957

59.2

1957

56.55

1957

45.3

1957

34.8

1957

21.4

1957

7.69

 

1958

10.3

3

17.5

29.1

37.2

49.4

56.6

54.7

47.5

36.9

20.5

2.9

30.6

1958

-2.2

5.86

16.1

30.2

1958

30.6

 

1958

31.1

1958

39.8

1958

52.7

1958

58.8

1958

56.24

1958

45.1

1958

35.1

1958

21

1958

7.31

 

1959

-4.5

2.5

21.4

25.2

41.3

54.8

57.3

58.7

45.4

33.6

14.9

21.5

31.2

1959

-2.5

6.47

16.4

29.4

1959

30.6

 

1959

30.9

1959

39.6

1959

52.9

1959

58.6

1959

56.34

1959

45.6

1959

34.8

1959

19.7

1959

8.91

 

1960

2.3

5.6

10.2

30.8

38.1

50.7

58.9

58.8

50.2

35

21.9

5.1

30.7

1960

-0.7

7.14

15.9

29.9

1960

31

 

1960

31

1960

39.3

1960

53.1

1960

58.9

1960

57.14

1960

45.9

1960

34.6

1960

20.5

1960

9.35

 

1961

0

13.8

25.8

26.8

37.3

53.6

58.3

56.4

47.5

36.5

21.9

4.1

31.9

1961

-0.2

7.59

17.4

29.4

1961

31.3

 

1961

31.4

1961

38.9

1961

53.5

1961

59.1

1961

57.19

1961

46.2

1961

34.7

1961

21.1

1961

9.64

 

1962

-3.3

0.1

19

30.7

48.2

57.2

59.7

59.7

47.6

41.5

28.7

9.1

33.4

1962

-0.1

6.32

17.7

29

1962

31.6

 

1962

31.6

1962

40

1962

53.9

1962

59.4

1962

57.64

1962

46.4

1962

36.4

1962

21.8

1962

9.11

 

1963

-7.8

1.5

21

32.8

41

58.8

60.7

58.3

52

43.2

22.4

-0.3

32.1

1963

-1.4

5.41

17.7

29.6

1963

31.5

 

1963

31.9

1963

39.9

1963

54.1

1963

59.6

1963

57.49

1963

47.2

1963

36.8

1963

21.5

1963

8.05

 

1964

7.2

11.1

11.5

35.9

42.5

56.8

62

53.3

45.2

32

21.8

-1.4

31.5

1964

0.3

4.37

17.1

30.3

1964

31.4

 

1964

31.9

1964

40.6

1964

54.5

1964

59.8

1964

57.18

1964

46.9

1964

36.5

1964

21.2

1964

6.36

 

1965

-7

0.6

9.7

33.6

43.4

51.4

58.1

54.9

41.7

36.1

19.1

16

30

1965

-0.8

4.44

16.9

30.1

1965

31.4

 

1965

31.8

1965

40.7

1965

54.2

1965

59.3

1965

56.81

1965

46.7

1965

36.9

1965

22

1965

8.13

 

1966

14.7

-1.1

24.6

27.1

34.3

52

61.4

55.4

44.9

32.2

16.4

5.5

28.3

1966

-2.2

4.39

18

30.2

1966

31.2

 

1966

31.1

1966

40.2

1966

53.7

1966

59.7

1966

56.77

1966

46.9

1966

36.5

1966

21.2

1966

7.61

 

1967

2.5

-4.4

17.8

29.1

33.5

49.9

53

48.5

45.2

33

20.5

8.4

28.3

1967

-1.5

3.27

17.9

30.1

1967

30.8

 

1967

30

1967

39.7

1967

53.5

1967

58.6

1967

55.87

1967

46.7

1967

36

1967

20.8

1967

7.09

 

1968

1.3

2

24.6

31.3

41.7

55.6

58.8

55.7

50.1

38.1

26.4

4.9

32.6

1968

-2.4

3.17

18.6

30.3

1968

31

 

1968

30.1

1968

40.1

1968

54.1

1968

58.8

1968

55.97

1968

47

1968

36.1

1968

21.4

1968

7.29

 

1969

-7

8.1

10.7

35.3

41.6

46.8

61

59.4

50.6

35.5

24.5

12

31.7

1969

-2.7

3.73

17.5

31.3

1969

31.1

 

1969

30.2

1969

40.2

1969

53.3

1969

59.2

1969

56.04

1969

47.5

1969

36.3

1969

22.4

1969

6.34

 

1970

-5.4

4.9

13.5

31.3

42.5

56.7

57.4

56.3

49.8

38.7

25

5

31.4

1970

-3.4

3.66

17.8

31.4

1970

31.1

 

1970

30.5

1970

40.6

1970

53.9

1970

59

1970

55.79

1970

47.5

1970

36.7

1970

22.7

1970

6.33

 

1971

-6.6

8.1

23.5

32.5

38.3

60.4

57.5

57.2

49.5

40.9

23.7

6.1

32.7

1971

-4.1

3.09

17.6

32

1971

31.2

 

1971

31.3

1971

40.7

1971

54.6

1971

59

1971

55.87

1971

47.7

1971

37.1

1971

22.9

1971

6.53

 

1972

-5.8

-3.1

17.4

31.6

49.1

50.8

55.9

59.2

44.4

31.7

23.3

-1.3

29.5

1972

-4.3

2.77

17.4

32.1

1972

30.8

 

1972

31.6

1972

40.8

1972

53.9

1972

58.6

1972

55.82

1972

47.3

1972

36.1

1972

22.3

1972

5.49

 

1973

7

12

30.3

25.5

36.9

52.3

56.2

61.1

46.9

42.7

21

6.8

33.4

1973

-2.9

3.82

18.4

31.3

1973

30.9

 

1973

31.7

1973

40.4

1973

53.3

1973

58.1

1973

56.1

1973

46.8

1973

36.1

1973

22.2

1973

6.2

 

1974

-3.6

5.9

17.9

35.7

43.6

50.1

61.7

55.9

39.7

36.1

23.8

16.5

32.1

1974

-3.9

3.3

19

31.3

1974

31

 

1974

31.8

1974

40.5

1974

52.6

1974

58.1

1974

56.36

1974

46.3

1974

36.5

1974

22.4

1974

7.99

 

1975

7.4

5

13.8

31.1

45.5

57.3

60.6

54.3

44.2

36.2

23

8.4

32.4

1975

-2.5

3.74

19.4

31.1

1975

31.2

 

1975

32

1975

40.7

1975

53.2

1975

58.4

1975

56.3

1975

46.5

1975

36.5

1975

22.8

1975

7.23

 

1976

0.8

15

16.7

33.1

32.6

52.6

53.6

50.6

38.6

23.7

10.3

-0.5

27.3

1976

-0.9

5.35

18.6

31.7

1976

31.1

 

1976

30.9

1976

40.5

1976

53.3

1976

57.6

1976

55.82

1976

45.9

1976

35.7

1976

22.2

1976

6.63

 

1977

10.5

11.5

24.1

32.2

49.8

53.8

58

49.7

49.3

34.8

19.7

0.8

31.2

1977

-2.2

6.94

19.3

32

1977

31.4

 

1977

31.3

1977

42.2

1977

53.6

1977

58.1

1977

55.94

1977

46.3

1977

35.8

1977

22.1

1977

5.87

 

1978

-9.1

-2.8

17

31.3

43.6

52

58.9

56.3

49.9

32.7

12.6

-0.4

28.7

1978

-3.3

6.46

18.5

32

1978

31

 

1978

30.3

1978

42.4

1978

53.3

1978

58.1

1978

56

1978

46.3

1978

35.3

1978

20.7

1978

5.34

 

1979

-13

-8.7

15.2

28.6

37.4

49.5

60.4

56.2

44.8

31.6

20.6

16.7

28.5

1979

-3.9

4.78

18.9

31.3

1979

30.7

 

1979

29.6

1979

41.9

1979

53.6

1979

58

1979

55.68

1979

45.7

1979

34.9

1979

20.3

1979

5.81

 

1980

0.4

2.9

14.5

28.5

36.5

53.1

54.7

55

46

31.8

24.7

5.3

29.5

1980

-3.3

4.58

19

31

1980

30.5

 

1980

29

1980

41.3

1980

53.2

1980

57.8

1980

55.55

1980

45.3

1980

34.2

1980

20.3

1980

5.84

 

1981

5.3

12.1

21.3

28.8

36.5

53

59

58.4

45.6

35.3

27.7

3.9

32.3

1981

-2.1

4.98

18.8

30.6

1981

30.5

 

1981

30

1981

41.2

1981

52.5

1981

57.9

1981

55.67

1981

44.9

1981

33.7

1981

20.7

1981

5.62

 

1982

14.9

3

17

26

43.8

44.8

59.4

54.9

46.7

38.3

18.5

15.5

29.6

1982

-3

5.59

18.8

30.1

1982

30.5

 

1982

29.7

1982

40.6

1982

51.9

1982

58.3

1982

55.24

1982

45.2

1982

34.3

1982

20.2

1982

7.3

 

1983

10.8

16.5

23.6

27.1

34.4

51.9

63

61.9

46

35

23.3

10.6

32

1983

-2.6

6.04

18.1

30.2

1983

30.4

 

1983

30.4

1983

40.4

1983

51.8

1983

58.9

1983

55.32

1983

45.1

1983

33.6

1983

20.4

1983

5.56

 

1984

0.9

18.2

15

30.6

34

53.8

56.2

55.9

39.8

38.7

20.1

1.1

30.4

1984

-2.2

7.27

17.8

29.7

1984

30.2

 

1984

30.8

1984

39.4

1984

52.2

1984

58.4

1984

55.32

1984

45.1

1984

33.8

1984

20.1

1984

4.02

 

1985

-2.3

3

24.7

31.6

44.5

48.6

55.8

54.1

45

33.5

9.2

-1.6

29

1985

-3.2

7.07

18.9

29.8

1985

29.9

 

1985

30.7

1985

39.3

1985

51.3

1985

57.9

1985

55.3

1985

45.2

1985

33.5

1985

18.7

1985

3.02

 

1986

9.5

5.9

25.1

34.8

44.1

55

63

55.1

48.8

37.5

17.1

15.7

34.5

1986

-2.3

6.16

19.8

30

1986

30.6

 

1986

31.1

1986

40.5

1986

51.6

1986

58.8

1986

55.75

1986

46.2

1986

34.9

1986

19.4

1986

4.64

 

1987

12.7

22.8

24

31.9

45.5

53.7

62.3

54.9

49.4

29.1

26.1

17.6

35.9

1987

0

7.29

19.7

29.9

1987

31

 

1987

32.4

1987

40

1987

51.5

1987

59.3

1987

56.27

1987

46.2

1987

34.4

1987

20

1987

6.32

 

1988

1.1

4.2

22.3

23.2

44.8

54.4

55.1

57.5

44.9

29.6

22.9

10.1

30.9

1988

1.1

7.99

20.3

29.1

1988

31.3

 

1988

32.1

1988

40.2

1988

51.8

1988

58.9

1988

56.39

1988

45.7

1988

34

1988

21

1988

7.37

 

1989

7

-4.2

15.2

30.8

40.3

50.4

59.2

56.2

46.3

29.7

18.4

-0.1

29.3

1989

3.1

8.44

20.3

29.3

1989

31.3

 

1989

31.9

1989

40.4

1989

51.9

1989

58.8

1989

56.39

1989

45.9

1989

33.9

1989

20.8

1989

5.69

 

1990

16

9.9

23.1

28

39.2

55.7

57.7

56

47.9

29.4

18.9

3

32.2

1990

4.6

9.14

21.1

29.3

1990

31.6

 

1990

32.6

1990

40.7

1990

52.1

1990

59.1

1990

56.49

1990

46

1990

33.6

1990

20.2

1990

5.46

 

1991

0.4

14

21.4

31.9

48.9

57.9

58.6

57.5

45.8

28.3

17.2

13.7

33.1

1991

4.1

9.33

21.1

29.6

1991

31.7

 

1991

32.3

1991

42

1991

52.6

1991

59

1991

56.4

1991

46.1

1991

32.9

1991

19.2

1991

6.44

 

1992

13.3

18.8

24.3

29.4

41.1

51.1

55.1

52.9

45.2

30.4

22.9

5.9

32.6

1992

6.9

10.9

21.9

29.9

1992

32

 

1992

31.6

1992

41.7

1992

53.3

1992

58.6

1992

56.2

1992

45.9

1992

32.1

1992

19.6

1992

5.48

 

1993

2.6

5

20.7

30.1

40.6

52.5

59.4

58.3

42.7

28.9

19.7

11.4

31.2

1993

6.1

9.76

21.6

30.2

1993

31.9

 

1993

31.7

1993

42.3

1993

53.3

1993

58.2

1993

55.84

1993

45.6

1993

31.5

1993

19.3

1993

7.68

 

1994

-9.6

-0.2

23.9

28.7

41.8

54.7

58.2

56.2

51.9

40.8

24.4

15.3

32.3

1994

5.1

7.92

22.5

30

1994

32.1

 

1994

32.3

1994

43.1

1994

53.4

1994

58.4

1994

55.87

1994

46.8

1994

31.7

1994

19.7

1994

9.1

 

1995

6.6

7.2

22.8

27.8

41.9

56.7

60.6

60.6

46.1

37.3

16.1

6.7

32.7

1995

6

8.34

22.3

29.7

1995

32.5

 

1995

32.4

1995

42.8

1995

54.2

1995

58.9

1995

56.52

1995

46.9

1995

32.1

1995

20.4

1995

9.93

 

1996

-6.4

9.4

11.7

27.5

38.5

54.2

57.5

57.1

48.4

33.2

11

1.4

28.7

1996

4.4

8.69

20.9

28.9

1996

31.9

 

1996

31.5

1996

42.3

1996

54.1

1996

58.4

1996

56.72

1996

46.9

1996

31.7

1996

19.8

1996

8.5

 

1997

-3.1

8.6

14.7

28.4

34.8

53.8

60.6

55.7

49.1

36

19.4

19.9

31.6

1997

2.8

7.27

20

28.6

1997

31.5

 

1997

31.3

1997

41.2

1997

54.1

1997

58.2

1997

56.8

1997

46.8

1997

32.4

1997

19.1

1997

8.73

 

1998

6.5

23.4

20.5

32.5

46.7

52.9

59.3

57.7

48.6

40.1

25

15.2

36.2

1998

3.3

9.19

19.8

29.5

1998

32

 

1998

32.3

1998

41.4

1998

54

1998

58.6

1998

56.82

1998

47.2

1998

33.4

1998

19.3

1998

9.24

 

1999

3.1

16.2

24.8

32.7

44.9

52.9

61.4

58.5

46.1

31.1

23.4

14.9

34.6

1999

2.9

11.2

20.8

29.7

1999

32.5

 

1999

32.8

1999

41.8

1999

54.2

1999

58.8

1999

57.05

1999

47.2

1999

33.6

1999

19.8

1999

10.7

 

2000

3.9

15.6

27.2

28.5

42.3

52.8

60.5

57.5

45.1

37.1

22

-4.1

32.4

2000

1.7

11.8

21.2

29.8

2000

32.5

 

2000

32.7

2000

42.2

2000

54

2000

59.1

2000

57.2

2000

46.9

2000

34.3

2000

20.1

2000

10

 

2001

10.3

-0.4

18.2

33.6

44.2

54.7

60.8

60.3

49.3

34

31.2

16.1

34.5

2001

2.7

10.4

20.9

29.9

2001

32.7

 

2001

33.9

2001

41.7

2001

53.6

2001

59.3

2001

57.48

2001

47.3

2001

34.9

2001

21.5

2001

10.3

 

2002

11.6

16.6

10.8

30.3

34

56.4

62.3

59.5

50.8

29.8

21.1

14.3

33.2

2002

2.6

10.1

19.5

30

2002

32.7

 

2002

34.2

2002

41

2002

54.2

2002

60.1

2002

58.14

2002

47.8

2002

34.8

2002

21.3

2002

11.1

 

2003

3.6

1.9

17.5

28.6

42

54.5

59.9

59.9

 

 

 

 

 

2003

2.7

9.83

19.2

29.9

2003

 

 

2003

 

2003

41.1

2003

54.4

2003

60.1

2003

58.3

2003

 

2003

 

2003

 

2003

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yr

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Ann

 

Jan

Feb

Mar

Apr

 

10 yr

 

 

5 yr

 

10 year moving averages

 

 

 

 

 

10 year moving averages

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 year moving averages

Ann

 

 

Ann

 

May

 

Jun

 

Jul

 

Aug

 

Sep

 

Oct

 

Nov

 

Dec

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 of 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 of 4

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* Used with permission of Pat Neuman.

 

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