| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.82 | 4.97 | -0.15 |
| Feb | 4.75 | 5.08 | -0.33 |
| Mar | 4.99 | 5.39 | -0.40 |
| Apr | 4.34 | 4.61 | -0.27 |
| May | 3.35 | 3.68 | -0.33 |
| Jun | 5.34 | 5.84 | -0.50 |
| Jul | 6.28 | 6.55 | -0.27 |
| Aug | 6.07 | 5.95 | 0.12 |
| Sep | 5.44 | 4.97 | 0.47 |
| Oct | 3.02 | 3.31 | -0.29 |
| Nov | 3.71 | 3.91 | -0.20 |
| Dec | 4.80 | 4.90 | -0.10 |
56.91 | 59.16 | -2.25 |