138 
METEOROLOGY, 
No. 1—Continued. 
Dalles of Columbia—latitude 45° 40'. 
Years. 
January. 
February. 
March. 
April. 
May. 
June. 
July. 
August. 
September. 
October. 
November. 
December. 
Spring. 
Summer. 
Autumn. 
Winter. 
Year. 
1850.. 
57.1 
53.4 
38.2 
31. 3 
49.5 
1851.. 
1852.. 
37.9 
41.4 
46.7 
54.1 
55.3 
42.2 
42. 1 
26. 1 
40.1 
1853.. 
1854.. 
Mean. 
32.3 
22.0 
37.1 
38.9 
43.7 
46.0 
53.4 
62. 1 
66.6 
74.9 
70.2 
63.7 
53.1 
70.6 
53.7 
36.5 
53.5 
30.7 
39.1 
45.5 
53.4 
62.1 
66.6 
74.9 
70.2 
60.4 
54.3 
40.8 
32.5 
53.7 
70.6 
51.8 
34.1 
52.5 
Fort Hall, Cantonment Loving—latitude 43°. 
63.4 
59.6 
47.9 
34.7 
22.5 
47.4 
24.3 
24. 1 
25.2 
42.7 
No. 2.—EXTREMES OF TEMPERATURE OBSERVED IN 1853-LOWEST OBSERVATIONS. 
Place. 
January. 
February. 
March. 
April. 
May. 
June. 
July. 
August. 
September. 
October. 
November. 
December. 
Fort Snelling. 
—15 
—24 
—15 
14 
34 
47 
54 
43 
40 
8 
3 
—16 
Fort Benton. 
11 
—2 
4-0 
Dalles of Columbia. 
19 
10 
22 
33 
36 
43 
46 
47 
46 
25 
22 
26 
Fort Vancouver. 
25 
19 
21 
33 
40 
47 
50 
43 
42 
28 
31 
26 
Puget sound. 
25 
20 
22 
34 
35 
47 
44 
43 
38 
29 
27 
23 
HIGHEST TEMPERATURES IN 1853. 
Fort Snelling. 
Fort Benton. 
56 
46 
58 
67 
84 
86 
85 
90 
90 
73 
80 
54 
58 
47 
60 
St. Mary’s. 
52 
51 
Cantonment Stevens. 
52 
46 
Dalles. 
50 
56 
67 
78 
94 
94 
105 
97 
88 
84 
59 
60 
Fort Vancouver. 
51 
56 
67 
74 
89 
88 
91 
84 
84 
82 
59 
58 
Puget sound. 
55 
54 
62 
67 
87 
85 
94 
93 
83 
78 
59 
60 
EXTREMES OF TEMPERATURE IN 1854—LOWEST OBSERVATIONS. 
Fort Snelling. 
—36 
—24 
—21 
—16 
—20 
—17 
8 
22 
20 
13 
14 
22 
3 
12 
21 
27 
30 
9 
13 
Fort Ridgelfty... 
Fort Laramie. 
Dalles...____ 
Fort Vancouver.... 
Fort Owen, St. Mary’s... 
—20 
—22 
— 1 
Cantonment Stevens.... 
• 
Puget sound.... 
