| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.35 | 2.29 | 0.06 |
| Feb | 2.65 | 2.53 | 0.12 |
| Mar | 2.20 | 2.10 | 0.10 |
| Apr | 0.97 | 0.86 | 0.11 |
| May | 0.71 | 0.77 | -0.06 |
| Jun | 0.42 | 0.34 | 0.08 |
| Jul | 2.52 | 2.69 | -0.17 |
| Aug | 3.10 | 3.17 | -0.07 |
| Sep | 1.75 | 1.57 | 0.18 |
| Oct | 1.53 | 1.56 | -0.03 |
| Nov | 1.40 | 1.28 | 0.12 |
| Dec | 2.08 | 2.01 | 0.07 |
21.68 | 21.17 | 0.51 |