| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.37  | 3.82  | -0.45  | 
| Feb | 2.94  | 3.34  | -0.40  | 
| Mar | 4.32  | 4.79  | -0.47  | 
| Apr | 4.04  | 4.34  | -0.30  | 
| May | 3.47  | 3.39  | 0.08  | 
| Jun | 3.65  | 3.65  | 0.00  | 
| Jul | 3.06  | 3.05  | 0.01  | 
| Aug | 3.60  | 3.74  | -0.14  | 
| Sep | 3.93  | 3.83  | 0.10  | 
| Oct | 4.33  | 4.52  | -0.19  | 
| Nov | 3.57  | 3.84  | -0.27  | 
| Dec | 4.21  | 4.70  | -0.49  | 
44.49  | 47.01  | -2.52  |