| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.32 | 2.38 | -0.06 | 
| Feb | 1.93 | 2.04 | -0.11 | 
| Mar | 2.69 | 2.67 | 0.02 | 
| Apr | 3.97 | 3.92 | 0.05 | 
| May | 4.32 | 4.35 | -0.03 | 
| Jun | 4.92 | 4.85 | 0.07 | 
| Jul | 4.49 | 4.35 | 0.14 | 
| Aug | 3.57 | 3.52 | 0.05 | 
| Sep | 3.04 | 2.99 | 0.05 | 
| Oct | 3.09 | 3.04 | 0.05 | 
| Nov | 2.94 | 2.98 | -0.04 | 
| Dec | 2.42 | 2.39 | 0.03 | 
| 39.70 | 39.48 | 0.22 |