| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.74 | -0.09 |
| Feb | 3.07 | 3.21 | -0.14 |
| Mar | 4.33 | 4.44 | -0.11 |
| Apr | 4.32 | 4.39 | -0.07 |
| May | 3.72 | 3.49 | 0.23 |
| Jun | 4.32 | 4.25 | 0.07 |
| Jul | 3.94 | 3.84 | 0.10 |
| Aug | 4.21 | 3.99 | 0.22 |
| Sep | 4.33 | 4.21 | 0.12 |
| Oct | 4.75 | 4.63 | 0.12 |
| Nov | 3.95 | 4.00 | -0.05 |
| Dec | 4.49 | 4.68 | -0.19 |
49.08 | 48.87 | 0.21 |