| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.50  | 3.87  | -0.37  | 
| Feb | 3.04  | 3.34  | -0.30  | 
| Mar | 4.03  | 4.33  | -0.30  | 
| Apr | 4.10  | 4.52  | -0.42  | 
| May | 3.62  | 3.71  | -0.09  | 
| Jun | 4.39  | 4.18  | 0.21  | 
| Jul | 4.03  | 4.05  | -0.02  | 
| Aug | 3.91  | 3.92  | -0.01  | 
| Sep | 4.23  | 4.39  | -0.16  | 
| Oct | 5.00  | 4.97  | 0.03  | 
| Nov | 3.86  | 3.93  | -0.07  | 
| Dec | 4.24  | 4.58  | -0.34  | 
47.95  | 49.79  | -1.84  |