| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.19 | 3.45 | -0.26 |
| Feb | 2.83 | 3.06 | -0.23 |
| Mar | 3.86 | 3.97 | -0.11 |
| Apr | 3.90 | 4.07 | -0.17 |
| May | 3.49 | 3.50 | -0.01 |
| Jun | 4.12 | 4.12 | 0.00 |
| Jul | 3.96 | 4.04 | -0.08 |
| Aug | 4.01 | 3.89 | 0.12 |
| Sep | 4.13 | 4.12 | 0.01 |
| Oct | 4.44 | 4.71 | -0.27 |
| Nov | 3.56 | 3.78 | -0.22 |
| Dec | 4.09 | 4.39 | -0.30 |
45.58 | 47.10 | -1.52 |