| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.61 | 0.05 |
| Feb | 0.85 | 0.84 | 0.01 |
| Mar | 1.43 | 1.40 | 0.03 |
| Apr | 2.32 | 2.27 | 0.05 |
| May | 4.39 | 4.22 | 0.17 |
| Jun | 3.69 | 3.66 | 0.03 |
| Jul | 3.99 | 4.06 | -0.07 |
| Aug | 3.63 | 3.68 | -0.05 |
| Sep | 2.33 | 2.28 | 0.05 |
| Oct | 1.81 | 1.89 | -0.08 |
| Nov | 1.07 | 1.06 | 0.01 |
| Dec | 0.98 | 0.99 | -0.01 |
27.15 | 26.96 | 0.19 |