May 1929 - March 1930 River Basins Average Temperature
-99
1901-2000 base period
Degrees Fahrenheit
128 years
1901-2000
201
Pacific Northwest Basin
44.1
-0.5
32
44.6
202
California River Basin
58.7
1
94
57.7
203
Great Basin
49.3
0.6
77
48.7
204
Lower Colorado River Basin
58.5
0
55
58.5
205
Upper Colorado River Basin
42.7
-0.9
31
43.6
206
Rio Grande River Basin
58.1
-0.9
18
59
207
Texas Gulf Coast River Basin
64.3
-1.2
14
65.5
208
Arkansas-White-Red Basin
55.9
-1.1
18
57
209
Lower Mississippi River Basin
63
-0.5
40
63.5
210
Missouri River Basin
44.1
-1.3
21
45.4
211
Souris-Red-Rainy Basin
37.3
-1.1
33
38.4
212
Upper Mississippi River Basin
45.6
-1.1
27
46.7
213
Great Lakes Basin
43.3
-1.3
18
44.6
214
Tennessee River Basin
57.3
-0.3
48
57.6
215
Ohio River Basin
51.7
-0.6
37
52.3
216
South Atlantic-Gulf Basin
63.6
-0.3
39
63.9
217
Mid-Atlantic Basin
50
-0.1
52
50.1
218
New England Basin
41.9
-0.5
37
42.4