July 1909 - December 1910 River Basins Average Temperature
-99
1901-2000 base period
Degrees Fahrenheit
128 years
1901-2000
201
Pacific Northwest Basin
45.5
-0.4
37
45.8
202
California River Basin
58.4
-0.4
37
58.8
203
Great Basin
50.2
0.2
64
50
204
Lower Colorado River Basin
60.4
0.8
90
59.6
205
Upper Colorado River Basin
45.4
0.4
76
45
206
Rio Grande River Basin
60.6
0.5
79
60
207
Texas Gulf Coast River Basin
67.4
0.7
100
66.6
208
Arkansas-White-Red Basin
59.1
0.7
94
58.4
209
Lower Mississippi River Basin
64.6
0
50
64.6
210
Missouri River Basin
47.4
0.3
75
47.1
211
Souris-Red-Rainy Basin
40.9
0.3
71
40.6
212
Upper Mississippi River Basin
48.3
-0.2
46
48.5
213
Great Lakes Basin
45.9
-0.5
30
46.5
214
Tennessee River Basin
58
-0.8
23
58.8
215
Ohio River Basin
52.7
-1
12
53.7
216
South Atlantic-Gulf Basin
64
-0.9
13
64.9
217
Mid-Atlantic Basin
50.6
-1
11
51.6
218
New England Basin
43.8
-0.4
31
44.2