| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.47  | 3.64  | -0.17  | 
| Feb | 3.10  | 3.19  | -0.09  | 
| Mar | 4.33  | 4.32  | 0.01  | 
| Apr | 4.11  | 4.26  | -0.15  | 
| May | 3.57  | 3.52  | 0.05  | 
| Jun | 3.98  | 3.84  | 0.14  | 
| Jul | 3.39  | 3.43  | -0.04  | 
| Aug | 3.74  | 4.05  | -0.31  | 
| Sep | 3.96  | 4.01  | -0.05  | 
| Oct | 4.23  | 4.24  | -0.01  | 
| Nov | 3.48  | 3.46  | 0.02  | 
| Dec | 4.49  | 4.59  | -0.10  | 
45.85  | 46.55  | -0.70  |