| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.23 | 4.97 | 0.26 |
| Feb | 4.68 | 4.55 | 0.13 |
| Mar | 4.99 | 4.89 | 0.10 |
| Apr | 4.71 | 4.29 | 0.42 |
| May | 4.32 | 3.98 | 0.34 |
| Jun | 5.30 | 4.43 | 0.87 |
| Jul | 5.19 | 4.41 | 0.78 |
| Aug | 5.80 | 5.50 | 0.30 |
| Sep | 4.74 | 4.28 | 0.46 |
| Oct | 4.04 | 3.95 | 0.09 |
| Nov | 4.34 | 4.19 | 0.15 |
| Dec | 5.68 | 5.41 | 0.27 |
59.02 | 54.85 | 4.17 |