| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.68  | 3.95  | -0.27  | 
| Feb | 3.24  | 3.55  | -0.31  | 
| Mar | 4.20  | 4.58  | -0.38  | 
| Apr | 4.29  | 4.68  | -0.39  | 
| May | 3.76  | 3.97  | -0.21  | 
| Jun | 4.42  | 4.49  | -0.07  | 
| Jul | 4.15  | 3.99  | 0.16  | 
| Aug | 4.07  | 4.26  | -0.19  | 
| Sep | 4.55  | 4.42  | 0.13  | 
| Oct | 4.85  | 5.11  | -0.26  | 
| Nov | 4.03  | 4.12  | -0.09  | 
| Dec | 4.34  | 4.78  | -0.44  | 
49.58  | 51.90  | -2.32  |