| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.65  | 3.77  | -0.12  | 
| Feb | 3.31  | 3.53  | -0.22  | 
| Mar | 4.09  | 4.31  | -0.22  | 
| Apr | 4.14  | 4.30  | -0.16  | 
| May | 3.66  | 3.77  | -0.11  | 
| Jun | 4.23  | 4.34  | -0.11  | 
| Jul | 3.30  | 3.40  | -0.10  | 
| Aug | 3.28  | 3.31  | -0.03  | 
| Sep | 4.09  | 3.98  | 0.11  | 
| Oct | 5.03  | 5.18  | -0.15  | 
| Nov | 4.45  | 4.58  | -0.13  | 
| Dec | 4.48  | 4.74  | -0.26  | 
47.71  | 49.21  | -1.50  |