Northern Rockies and Plains Climate Region, Precipitation, 24-Month Period Ending in March
Inches
1901-1905
-99
189703
39.43
2.16
189803
39.83
2.56
189903
36.28
-0.99
190003
36.08
-1.19
190103
35.58
-1.69
190203
37.61
0.34
190303
37.55
0.28
190403
38.93
1.66
190503
36.67
-0.60