YEAR.

Lat., 42° 30' N.; Long., 90° 44′ W. Elevation above sea level, 665 feet.

COMPARATIVE MEAN TEMPERATURE (DEGREES).

August.

September.

October.

November.

December.

January.

February.

March.

April.

May.

1874.
1875.

72.5 78.3 74.3

65.2

52.01

34.4 29.6 21.21 23.21 33.2 41.3

65.2

3.30 3.34

2.13 7.68 2.14 4.17 0.65 2.45 0.36] 1.28]

1.541

67.5 73.3 69.7 61.7 52.1 33.7 33.9 6.6 6.1 27.5 45.0 60.9
69.1 74.9 73.8 61.4 47.6 34.1 13.7 27.8 27.8 31.0 48.6 61.6
67.7 74.7 73.0 66.2 51.7 35.0 46.0 15.2 34.8 27.1 48.2 62.2
66.8 76.8 73.7 63.8 49.9 39.7 19.5 27.7 35.3 45.4 53.6 56.0
68.9 76.6 71.6 59.4 58.7 37.4 20.3 17.4
22.8 37.2 50.7 62.6
71.1 74.2 72.8 61.2 48.7 27.8 19.1 34.4 29.1 35.6 48.8 67.4
67.6 75.2 74.5 66.3 3.3 36.2 34.7 12.5 20.1 30.4 43.9 67.7
67.2 69.0 71.6 62.6 55.3 39.2 23.4 24.1 35.7 37.0 48.5 54.4
67.7 72.5 68.5 58.8 53.3 38.5 27.0 10.2 18.8 30.9 49.7 54.6
68.6 70.0 68.4] 67.8 53.6 36.3 21.3 14.1 22.2 32.2 48.4 60.6
69.0 75.9 68.8 63.5 55.1 39.2 28.4 12.3 13.3 30.3 47.2 56.7
71.3 78.4 76.8 65.1 48.8 35.8 19.2 10.9 21.8 31.3 51.0 61.1
71.9 77.5 78.2 71.0 46.3 25.0 22.9 11.5 20.7 32.4 50.7 66.6
69.0 74.1 69.0 57.0 46.0 37.0 29.0 7.0 18.0 26.7 48.0 53.9
22.0 16.0 39.0 49.0 59.0

4.75 5.39

1.07 7.11 2.71 0.48

2.71

7.88 8.15

5.92 5.00 1.10 2.49

0.52

1.00 2.12 1.45 2.71 3.20

1.08 30.1
3.62 35.12

1.53 4.00 3.63

5.96 50.28

6.75 2.90

3.96 0.67 5.35 3.31

2.70

0.96

0.26 4.53 3.74

3.84 38.07

4.35 6.71

1.72 6.94 2.85 0.76

1.12

0.49

1.93

2.44

4.34

4.61 38.26

4.99 6.78

2.43 2.98 0.93

5.41

1.28

0.44

1.00

1.20 2.02

2.94 22.51

6.02 3.55

7.15 6.84 0.66

2.11

1.25 1.95

1.01 2.55 3.52

3.72 31.54

7.56 10,53 2.46 10.26 6.70

3.19

1.55

1.87

3.70

3.78 1.30

2.20 42.40

6.29 1.48

2.29 2.60 5.29

1.55

1.79

0.84

0.59

1.49

4.47

4.16 41.13

5.34 7.90

2.70 2.09 4.44

1.65

1.88

1.59

2.60

0.32 1.93

7.13 39.65

4.89 5.30

4.25 4.07 4.16

1.43

4.08

0.99

2.19

3.85 2.77

4.88 31.98

6.16 6.16

8.07 4.58 2.30

0.64

3.14

1.80

0.721 0.41

3.69

2.62 34.11

0.71 0.89

0.67 2.10 4.08 1.89

1.03

3.17

1.36 4.32

2.12

4.17 29.66

1.32 2.44

4.40 7.72 2.22

0.74

3.07

3.33

3.56 1.80

1.37

2.53 32.50

5.28 3.59

1.73 2.01 1.62

3.871 4.22

March.

April.

May.

Total for

1874-KEOKUK-1889.

75.5 80.4 76.7 67.0 55.4 36.7 31.2 27.7 29.4 38.0 44.0 66.7
71.0 75.5 70.3 63.8 50.6 35.1 36.5 16.3 18.4 33.8 48.9 61.8
69.7 76.4 75.8 64.4 51.8 36.2 18.8 33.8 34.2 34.6 52.6 63.5
71.4 76.9 74.3 69.8 55.3 38.9 42.9 22.0 38.0 32.5
70.6 81.5 77.7 67.3 54.3 44.0 23.8 34.9 38.4 50.4 58.8
72.1 80.6 75.0 62.9 61.6 42.7 26.9 22.6 29.8 42.6

50.7

62.1

7.82 6.90

2.52 3.61 7.01

3.05 3.90

0.51

0.15 3.76

4.22

5.55 49.19

60.2

3.93 2.37

5.27 1.36 2.31

1.93 1.95

0.16

2.95

3.78

2.31

3.47 31.78

66.8

2.43 1.98

4.57 1.12 0.28

3.91

1.45 0.50

0.53 1.72

1.55

1.46 22.51

77.7 77.5 65.4 51.2 31.5 24.1 41.31 36.3 40.0 53.8
72.7 79.9 70.2 72.4 57.0 39.6 37.6 18.8 24.9 33.7 46.8
71.1 72.4 73.4 66.1 58.6 42.8 27.7 28.1 39.5 41.7 53.7
69.7 76.0 71.2 62.7 51.5 42.8 31.8 15.5 24.9 35.3 54.0
71.5 75.0 72.0 71.1 58.4 40.6 23.0 18.7 27.5 37.3 50.6
70.4 78.5 70.0 64.6 49.4 40.6 28.7 16.3
70.7 77.5 77.1 68.2 57.6 38.5 21.3

68.9

3.06 2.25

3.81 3.21 2.02

1.13

0.67 3.91 1.94 1.83

4.79

5.92 34.84

69.8

8.70 3.08

0.86 4.10 8.01

2.59

1.70 0.50 2.58 2.42

3.12

6.65 42.30

56.8

9.44 4.53

3.09 2.52 2.71

2.25 1.75

1.07 1.54 3.30

3.22

7.11 41.53

59.8

5.88 3.15

1.34 1.76 6.95

2.09

1.20

1.24 6.13

1.07

2.97

4.87 38.65

62.3

4.03 2.30

2.74 4.25 3.35

1.73

3.91

0.85 1.88

3.37

1.31

3.16 31.98

16.4 34.7

49.7 60.6

6.97 2.29

5.98 3.77 2.59

0.88

1.96 2.44

1.14

0.17

2.33

2.59 34.11

14.7

26.2 26.5

53.6 64.1

2.86 0.65

5.90 3.94 2.38

1.15

1.03 2.08 1.40

2.25

1.52

4.49 29.66

72.8 79.1 74.1 65.9 50.0 40.5 27.3 19.1 29.5 38.4 60.0 48.6 39.2 32.2 13.6 25.7

Lat., 61° 16' N.; Long., 96° 0′ W.
73.1 79.6 77.2 62.7 53.6 36.0 28.21 22.21 23.0 33.1 44.7 66.11 6.93 0.54
70.9 74.2 70.0 62.5 47.6 32.6 33.9 10.8 25.7 30.2 44.9 62.9 10.95 10.01
68.2 75.2 74.9 62.2 49.9 33.1 19.0 26.7 30.4 29.2 51.1 63.0
69.1 75.6 72.6 66.4 51.2 36.0 38.9 20.2 37.3 33.9
60.7 79.0 76.8 64.1 52.0 43.8 21.5 28.8 36.7 47.9 54.6
72.7 78.5 75.0 62.5 61.5 40.3 17.3 21.7 26.8 41.0 53.6 60.8
73.0 76.7 74.2 62.9 49.2 26.4 18.4 34.5 30.9 35.9 51.2 69.4
74.9 78.9 80.2 66.0 54.4 36.9 36.0 11.8 17.9 27.6 44.4 67.8
71.0 71.7 73.1 67.5 57.2 39.7 24.6 27.5 36.3 40.2 52.0 56.6
69.1 75.7 71.3 60.8 49.4 39.2 28.6 11.9 21.7 34.6 53.6 57.3
72.3 74.5 70.3 68.6 57.3 39.3 17.3 17.0 19.4 35.3
71.2 77.0 69.9 64.5 49.8 39.9 28.6 12.2 16.6 36.1 50.1 59.8 2.67 9.24
70.2 77.3 75.6 65.1 58.3 34.3 17.9 11.9 24.4 31.9 50.9 65.1 1.50 0.69
72.4 76.3 72.0 65.3 50.7 39.6 23.6 11.8 18.2 38.0 54.5 66.1 4.56 2.02
70.0 77.6
61.3 48.4 36.7 30.4 8.0 25.9 28.8 52.5 55.9 3.86 2.56
22.8 21.1 40.2 52.4 61.6 5.44 4.94

Elevation above sea level, 1,113 feet.

3.47 7.30

50.1 60.3

8.30 0.96

3.13 2.05 5.86 1.39

2.14

0.53

0.44

1.26

6.24

8.62 40.92

58.1

8.48 7.66

2.48 3.22 0.55 0.29

0.27

1.13

0.14

3.09

3.97

5.77 37.05

4.09 3.17

1.51 1.43 3.64 4.25

1.75

0.07

0.93

2.17

1.77

5.53 30.41

3.14 5.36

7.10 2.91 3.54 1.70

0.28

0.90

0.14 0.50

0.55

3.40 29.52

5.56 5.89

1.65 8.36 4.84 1.29

1.56

0.61

3.09

0.72 4.23

7.94 45.75

* The observations made at Omaha represent the western portion of the State.

Normals of Temperatures for Twenty Years.

NORMALS OF TEMPERATURES FOR TWENTY YEARS.

The following table is compiled from observations of Prof. T. S. Parvin, from 1861, to 1871, and from those of Prof. G. Hinrichs, of the Iowa Weather Service, from 1871, to 1880, and are the result of nearly thirty thousand observations, which were made at Iowa City. The values given, are for each decade of each month.

APPENDIX.

Resolved, That the Board is in nowise responsible for the sentiments and opinions entertained in the following papers, prepared by special request of the Board, the respective author of each paper being responsible for its contents.-Resolution adopted by the State Board of Health and ordered printed in the Biennial Report.