| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 2.35 | 2.40 | -0.05 | 
| Feb | 1.98 | 2.10 | -0.12 | 
| Mar | 2.88 | 2.88 | 0.00 | 
| Apr | 4.06 | 4.10 | -0.04 | 
| May | 4.42 | 4.52 | -0.10 | 
| Jun | 4.69 | 4.82 | -0.13 | 
| Jul | 4.16 | 4.28 | -0.12 | 
| Aug | 3.40 | 3.38 | 0.02 | 
| Sep | 3.05 | 3.10 | -0.05 | 
| Oct | 3.31 | 3.39 | -0.08 | 
| Nov | 3.22 | 3.27 | -0.05 | 
| Dec | 2.42 | 2.47 | -0.05 | 
| 39.94 | 40.71 | -0.77 |