| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.61  | 3.92  | -0.31  | 
| Feb | 3.22  | 3.40  | -0.18  | 
| Mar | 4.23  | 4.49  | -0.26  | 
| Apr | 4.28  | 4.62  | -0.34  | 
| May | 3.91  | 4.05  | -0.14  | 
| Jun | 4.46  | 4.47  | -0.01  | 
| Jul | 4.19  | 4.19  | 0.00  | 
| Aug | 4.20  | 4.25  | -0.05  | 
| Sep | 4.64  | 4.47  | 0.17  | 
| Oct | 4.87  | 5.05  | -0.18  | 
| Nov | 4.05  | 4.09  | -0.04  | 
| Dec | 4.35  | 4.72  | -0.37  | 
50.01  | 51.72  | -1.71  |