| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 4.43  | 4.67  | -0.24  | 
| Feb | 4.18  | 4.29  | -0.11  | 
| Mar | 4.57  | 4.66  | -0.09  | 
| Apr | 3.71  | 3.98  | -0.27  | 
| May | 3.71  | 3.81  | -0.10  | 
| Jun | 4.12  | 4.17  | -0.05  | 
| Jul | 4.10  | 4.07  | 0.03  | 
| Aug | 4.39  | 4.79  | -0.40  | 
| Sep | 3.72  | 3.89  | -0.17  | 
| Oct | 3.40  | 3.61  | -0.21  | 
| Nov | 3.67  | 3.91  | -0.24  | 
| Dec | 4.62  | 4.95  | -0.33  | 
48.62  | 50.80  | -2.18  |