| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.62 | 0.68 | -0.06 |
| Feb | 0.72 | 0.78 | -0.06 |
| Mar | 1.49 | 1.44 | 0.05 |
| Apr | 2.57 | 2.56 | 0.01 |
| May | 3.48 | 3.44 | 0.04 |
| Jun | 4.30 | 4.27 | 0.03 |
| Jul | 3.57 | 3.38 | 0.19 |
| Aug | 3.65 | 3.55 | 0.10 |
| Sep | 3.00 | 2.89 | 0.11 |
| Oct | 2.28 | 2.14 | 0.14 |
| Nov | 1.19 | 1.17 | 0.02 |
| Dec | 0.82 | 0.87 | -0.05 |
27.69 | 27.17 | 0.52 |