| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.58  | 3.67  | -0.09  | 
| Feb | 2.74  | 2.93  | -0.19  | 
| Mar | 3.94  | 4.19  | -0.25  | 
| Apr | 4.03  | 4.04  | -0.01  | 
| May | 4.13  | 4.11  | 0.02  | 
| Jun | 4.64  | 4.74  | -0.10  | 
| Jul | 4.78  | 4.66  | 0.12  | 
| Aug | 4.62  | 4.54  | 0.08  | 
| Sep | 4.49  | 4.38  | 0.11  | 
| Oct | 4.44  | 4.48  | -0.04  | 
| Nov | 3.49  | 3.62  | -0.13  | 
| Dec | 4.41  | 4.46  | -0.05  | 
49.29  | 49.82  | -0.53  |