May 1991 - April 1994 River Basins Average Temperature
-99
1901-2000 base period
Degrees Fahrenheit
126 years
1901-2000
201
Pacific Northwest Basin
45.4
1
104
44.4
202
California River Basin
58.5
1.1
104
57.4
203
Great Basin
49.1
0.7
87
48.4
204
Lower Colorado River Basin
58.6
0.3
80
58.2
205
Upper Colorado River Basin
44.1
0.7
85
43.4
206
Rio Grande River Basin
58.9
-0
44
59
207
Texas Gulf Coast River Basin
65
-0.5
22
65.4
208
Arkansas-White-Red Basin
56.5
-0.5
23
57
209
Lower Mississippi River Basin
63.1
-0.4
28
63.5
210
Missouri River Basin
45.4
0.1
68
45.3
211
Souris-Red-Rainy Basin
38.5
-0
49
38.5
212
Upper Mississippi River Basin
46.3
-0.3
36
46.7
213
Great Lakes Basin
44.4
-0.1
49
44.4
214
Tennessee River Basin
57.3
-0.2
36
57.5
215
Ohio River Basin
52.3
0.2
56
52.2
216
South Atlantic-Gulf Basin
63.9
0.1
46
63.9
217
Mid-Atlantic Basin
50.1
0.2
58
49.9
218
New England Basin
42.1
-0.1
50
42.2