| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.82 | -0.21 |
| Feb | 2.89 | 3.28 | -0.39 |
| Mar | 4.28 | 4.52 | -0.24 |
| Apr | 4.24 | 4.48 | -0.24 |
| May | 3.74 | 3.62 | 0.12 |
| Jun | 4.31 | 4.26 | 0.05 |
| Jul | 3.83 | 3.83 | 0.00 |
| Aug | 4.19 | 4.14 | 0.05 |
| Sep | 4.27 | 4.43 | -0.16 |
| Oct | 4.71 | 4.69 | 0.02 |
| Nov | 4.01 | 4.03 | -0.02 |
| Dec | 4.41 | 4.77 | -0.36 |
48.49 | 49.87 | -1.38 |