| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.39 | 2.48 | -0.09 |
| Feb | 1.95 | 2.11 | -0.16 |
| Mar | 2.28 | 2.33 | -0.05 |
| Apr | 3.61 | 3.68 | -0.07 |
| May | 4.19 | 4.28 | -0.09 |
| Jun | 4.21 | 4.21 | 0.00 |
| Jul | 3.89 | 3.71 | 0.18 |
| Aug | 3.91 | 3.96 | -0.05 |
| Sep | 3.03 | 2.99 | 0.04 |
| Oct | 3.06 | 2.98 | 0.08 |
| Nov | 2.81 | 3.02 | -0.21 |
| Dec | 2.33 | 2.32 | 0.01 |
37.66 | 38.07 | -0.41 |