| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.08 | 2.14 | -0.06 |
| Feb | 2.13 | 2.03 | 0.10 |
| Mar | 2.29 | 2.12 | 0.17 |
| Apr | 2.49 | 2.67 | -0.18 |
| May | 2.06 | 1.60 | 0.46 |
| Jun | 1.23 | 1.28 | -0.05 |
| Jul | 1.67 | 1.72 | -0.05 |
| Aug | 1.61 | 1.68 | -0.07 |
| Sep | 1.83 | 1.99 | -0.16 |
| Oct | 1.87 | 1.86 | 0.01 |
| Nov | 1.94 | 1.97 | -0.03 |
| Dec | 1.82 | 1.86 | -0.04 |
23.02 | 22.92 | 0.10 |