| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.43 | -0.13 |
| Feb | 3.38 | 3.42 | -0.04 |
| Mar | 4.49 | 4.59 | -0.10 |
| Apr | 4.41 | 4.51 | -0.10 |
| May | 5.11 | 5.14 | -0.03 |
| Jun | 4.85 | 4.86 | -0.01 |
| Jul | 5.02 | 4.89 | 0.13 |
| Aug | 3.43 | 3.27 | 0.16 |
| Sep | 3.55 | 3.53 | 0.02 |
| Oct | 3.40 | 3.48 | -0.08 |
| Nov | 3.17 | 3.15 | 0.02 |
| Dec | 3.84 | 3.97 | -0.13 |
47.95 | 48.24 | -0.29 |