| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.57 | -0.07 |
| Feb | 2.88 | 2.95 | -0.07 |
| Mar | 4.04 | 3.98 | 0.06 |
| Apr | 3.58 | 3.70 | -0.12 |
| May | 3.75 | 3.95 | -0.20 |
| Jun | 4.46 | 4.19 | 0.27 |
| Jul | 5.20 | 5.54 | -0.34 |
| Aug | 4.94 | 5.23 | -0.29 |
| Sep | 4.77 | 5.15 | -0.38 |
| Oct | 4.01 | 4.43 | -0.42 |
| Nov | 3.05 | 3.13 | -0.08 |
| Dec | 3.61 | 3.72 | -0.11 |
47.79 | 49.54 | -1.75 |