| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.95  | 4.24  | -0.29  | 
| Feb | 3.22  | 3.46  | -0.24  | 
| Mar | 3.78  | 3.93  | -0.15  | 
| Apr | 4.40  | 4.50  | -0.10  | 
| May | 4.45  | 4.45  | 0.00  | 
| Jun | 4.90  | 4.93  | -0.03  | 
| Jul | 4.22  | 4.05  | 0.17  | 
| Aug | 4.33  | 4.26  | 0.07  | 
| Sep | 3.97  | 4.20  | -0.23  | 
| Oct | 4.87  | 5.38  | -0.51  | 
| Nov | 4.11  | 4.59  | -0.48  | 
| Dec | 4.35  | 4.81  | -0.46  | 
50.55  | 52.80  | -2.25  |