METEOROLOGY. 
137 
No. 1—Continued. 
Fort Clark—latitude 47°. 
Years. 
January. 
February. 
March. 
April. 
May. 
June. 
July. 
August. 
September. 
October. 
November. 
December. 
Spring. 
Summer. 
Autumn. 
Winter. 
Year. 
1833 
32.9 
21. 3 
1834.. 
—5.5 
23.8 
25.1 
Fort Union—latitude 48°. 
1832__ 
52.0 
47.8 
47.5 
52. 1 
66.2 
65.8 
73.8 
73.5 
. 
1833.. 
21.3 
17.5 
32.5 
70.6 
58.4 
44.1 
70.0 
Fort Benton—latitude 47° 20'. 
1853 
53.3 
19.4 
33.0 
Cantonment Stevens—latitude 46° 30'. 
13.9 
31.3 
St. Mary’s Village—latitude 46° 30'. 
1854.. 
35.4 
Lajoivai, Kooslcooskia—latitude 46° 30'. 
1837.. 
1840.. 
1841.. 
32.5 
38.0 
25.0 
37.5 
41.5 
36.5 
43.2 
42.2 
56.0 
49.5 
61.0 
54.0 
67.7 
70.0 
68.2 
72.0 
71.0 
73.0 
60.0 
68.0 
48.2 
48.0 
41.5 
41.5 
40.0 
40.8 
53.4 
48. 6 
69.0 
71.7 
50.0 
52.5 
36.7 
40. 1 
52.3 
53.2 
Mean. 
31.8 
38.5 
42.7 
52.7 
57.5 
68.9 
70.1 
72.0 
64.0 
48.1 
41.5 
40.4 
51.0 
70.3 
51.2 
36.9 
52.3 
MEAN TEMPERATURES AT STATIONS IN THE NORTHWEST. 
Steilacoom, Puget sound—latitude 47°. 
1849.. 
48. 1 
36.1 
1850.. 
35.7 
39.4 
41.2 
47.7 
56.3 
60.6 
64.8 
62.9 
55.5 
51.9 
41.9 
37.4 
48.4 
62.7 
49.8 
37.5 
1851.. 
40.6 
40.8 
43.2 
51.5 
54.4 
61.2 
63.9 
66.3 
57.0 
52.9 
47. 0 
41.1 
49.7 
63. 8 
52.3 
40.8 
1852.. 
44.1 
43.7 
40.9 
46.5 
58.2 
62. 1 
64. 4 
64.6 
56.6 
51.9 
48.9 
32.2 
48.5 
63.7 
50.8 
40. 0 
1853.. 
39.7 
39.8 
41.9 
48.7 
57.6 
60.4 
66.5 
62.1 
58.5 
53.6 
45.2 
44.6 
49.4 
63.0 
52.4 
41.4 
1854.. 
30.6 
39.6 
Mean. 
38.1 
40.7 
41.8 
48.6 
56.6 
61.1 
64.9 
64.0 
56.9 
52.6 
46.2 
38.3 
49. 0 
63.3 
51.9 
39.0 
Fort Vancouver—latitude 45° 36'. 
1849.. 
35.3 
1850.. 
1851.. 
38.5 
38.3 
42.0 
57.8 
62.1 
62.2 
68.5 
67.2 
61.6 
64.5 
43.7 
36.1 
38. 2 
44.0 
65.9 
53.3 
37.6 
50.2 
1852.. 
44.6 
44.3 
42.8 
48.8 
60.9 
72.6 
45. 1 
33. 0 
50.8 
40.6 
40.6 
1853.. 
1854.. 
37.8 
42.1 
38.0 
46.5 
45.0 
54.2 
60.0 
63.3 
70.8 
64.0 
60.3 
53.5 
45.4 
41.8 
53.6 
66.0 
53.1 
53.3 
Mean. 
40.3 
40.7 
44.1 
50.3 
61.0 
66.0 
69.7 
65.6 
61.0 
54.0 
44.7 
36.9 
51.8 
67.1 
53.2 
39.3 
52.8 
18 / 
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