| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 4.18  | 4.30  | -0.12  | 
| Feb | 3.65  | 3.85  | -0.20  | 
| Mar | 4.55  | 4.61  | -0.06  | 
| Apr | 4.30  | 4.35  | -0.05  | 
| May | 3.77  | 3.94  | -0.17  | 
| Jun | 4.25  | 4.40  | -0.15  | 
| Jul | 4.23  | 4.32  | -0.09  | 
| Aug | 4.46  | 4.54  | -0.08  | 
| Sep | 3.87  | 4.12  | -0.25  | 
| Oct | 3.58  | 3.77  | -0.19  | 
| Nov | 3.78  | 3.93  | -0.15  | 
| Dec | 4.31  | 4.63  | -0.32  | 
48.93  | 50.76  | -1.83  |