| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.28 | 3.45 | -0.17 |
| Feb | 2.66 | 2.84 | -0.18 |
| Mar | 3.45 | 3.55 | -0.10 |
| Apr | 4.06 | 4.13 | -0.07 |
| May | 4.02 | 4.24 | -0.22 |
| Jun | 4.47 | 4.78 | -0.31 |
| Jul | 4.43 | 4.68 | -0.25 |
| Aug | 4.68 | 4.65 | 0.03 |
| Sep | 4.43 | 4.51 | -0.08 |
| Oct | 4.33 | 4.41 | -0.08 |
| Nov | 3.38 | 3.37 | 0.01 |
| Dec | 3.45 | 3.61 | -0.16 |
46.64 | 48.22 | -1.58 |