| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.21 | 4.32 | -0.11 |
| Feb | 4.21 | 4.30 | -0.09 |
| Mar | 4.58 | 4.61 | -0.03 |
| Apr | 3.39 | 3.51 | -0.12 |
| May | 3.23 | 3.15 | 0.08 |
| Jun | 4.38 | 4.55 | -0.17 |
| Jul | 3.90 | 4.07 | -0.17 |
| Aug | 4.40 | 4.52 | -0.12 |
| Sep | 3.64 | 3.85 | -0.21 |
| Oct | 2.91 | 3.07 | -0.16 |
| Nov | 3.47 | 3.66 | -0.19 |
| Dec | 4.57 | 4.65 | -0.08 |
46.89 | 48.26 | -1.37 |