| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.74 | -0.39 |
| Feb | 2.94 | 3.22 | -0.28 |
| Mar | 4.20 | 4.39 | -0.19 |
| Apr | 3.82 | 4.09 | -0.27 |
| May | 3.37 | 3.40 | -0.03 |
| Jun | 3.91 | 3.88 | 0.03 |
| Jul | 3.37 | 3.22 | 0.15 |
| Aug | 3.89 | 3.91 | -0.02 |
| Sep | 3.84 | 3.76 | 0.08 |
| Oct | 3.94 | 4.30 | -0.36 |
| Nov | 3.36 | 3.47 | -0.11 |
| Dec | 4.30 | 4.63 | -0.33 |
44.29 | 46.01 | -1.72 |