May 1958 - March 1959 River Basins Average Temperature
-99
1901-2000 base period
Degrees Fahrenheit
128 years
1901-2000
201
Pacific Northwest Basin
46.9
2.3
124
44.6
202
California River Basin
59.8
2.1
121
57.7
203
Great Basin
50.7
2.1
116
48.7
204
Lower Colorado River Basin
60
1.5
106
58.5
205
Upper Colorado River Basin
45.6
2
112
43.6
206
Rio Grande River Basin
59.2
0.1
60
59
207
Texas Gulf Coast River Basin
65.1
-0.4
40
65.5
208
Arkansas-White-Red Basin
57
-0
51
57
209
Lower Mississippi River Basin
62.9
-0.6
34
63.5
210
Missouri River Basin
45.5
0.1
63
45.4
211
Souris-Red-Rainy Basin
37.5
-0.9
41
38.4
212
Upper Mississippi River Basin
45.6
-1.1
27
46.7
213
Great Lakes Basin
42.7
-1.9
8
44.6
214
Tennessee River Basin
56.8
-0.8
29
57.6
215
Ohio River Basin
50.9
-1.3
12
52.3
216
South Atlantic-Gulf Basin
63.7
-0.2
46
63.9
217
Mid-Atlantic Basin
48.7
-1.4
10
50.1
218
New England Basin
40.2
-2.2
6
42.4