| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.97 | 3.06 | -0.09 |
| Feb | 2.42 | 2.40 | 0.02 |
| Mar | 3.19 | 3.24 | -0.05 |
| Apr | 3.69 | 3.71 | -0.02 |
| May | 4.05 | 3.94 | 0.11 |
| Jun | 4.53 | 4.32 | 0.21 |
| Jul | 4.08 | 4.02 | 0.06 |
| Aug | 3.68 | 3.51 | 0.17 |
| Sep | 3.61 | 3.55 | 0.06 |
| Oct | 3.05 | 3.02 | 0.03 |
| Nov | 2.80 | 2.92 | -0.12 |
| Dec | 2.98 | 3.01 | -0.03 |
41.05 | 40.70 | 0.35 |