| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.49 | 0.15 |
| Feb | 4.09 | 3.81 | 0.28 |
| Mar | 5.06 | 4.81 | 0.25 |
| Apr | 5.58 | 5.19 | 0.39 |
| May | 5.52 | 5.26 | 0.26 |
| Jun | 3.66 | 3.38 | 0.28 |
| Jul | 3.78 | 3.80 | -0.02 |
| Aug | 3.66 | 3.17 | 0.49 |
| Sep | 3.34 | 3.27 | 0.07 |
| Oct | 4.35 | 4.22 | 0.13 |
| Nov | 4.76 | 4.85 | -0.09 |
| Dec | 4.95 | 4.97 | -0.02 |
52.39 | 50.22 | 2.17 |