March - December 1915 River Basins Average Temperature
-99
1901-2000 base period
Degrees Fahrenheit
129 years
1901-2000
201
Pacific Northwest Basin
48
0.4
75
47.7
202
California River Basin
59.5
-0.5
30
60.1
203
Great Basin
52.1
0.1
62
52
204
Lower Colorado River Basin
60.6
-1
13
61.6
205
Upper Colorado River Basin
46.7
-0.8
31
47.5
206
Rio Grande River Basin
61.2
-1.1
11
62.3
207
Texas Gulf Coast River Basin
68.2
-0.8
25
68.9
208
Arkansas-White-Red Basin
59.5
-1.6
6
61
209
Lower Mississippi River Basin
66.7
-0.2
39
67
210
Missouri River Basin
48.6
-1.4
12
50.1
211
Souris-Red-Rainy Basin
44.3
-0.5
41
44.8
212
Upper Mississippi River Basin
51.1
-1
23
52.1
213
Great Lakes Basin
48.3
-1.1
16
49.4
214
Tennessee River Basin
61.2
-0.1
51
61.3
215
Ohio River Basin
55.7
-0.8
23
56.5
216
South Atlantic-Gulf Basin
66.7
-0.2
41
67
217
Mid-Atlantic Basin
53.5
-0.8
20
54.3
218
New England Basin
47.1
-0.1
49
47.2