| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 4.88  | 4.35  | 0.53  | 
| Feb | 5.65  | 4.80  | 0.85  | 
| Mar | 3.31  | 3.07  | 0.24  | 
| Apr | 1.30  | 1.21  | 0.09  | 
| May | 0.71  | 0.60  | 0.11  | 
| Jun | 0.09  | 0.15  | -0.06  | 
| Jul | 0.32  | 0.37  | -0.05  | 
| Aug | 0.20  | 0.31  | -0.11  | 
| Sep | 0.28  | 0.34  | -0.06  | 
| Oct | 0.94  | 1.08  | -0.14  | 
| Nov | 1.56  | 1.34  | 0.22  | 
| Dec | 3.83  | 3.48  | 0.35  | 
23.07  | 21.10  | 1.97  |