| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.21 | 1.17 | 0.04 |
| Feb | 1.08 | 1.05 | 0.03 |
| Mar | 1.72 | 1.62 | 0.10 |
| Apr | 2.85 | 2.80 | 0.05 |
| May | 3.65 | 3.55 | 0.10 |
| Jun | 4.45 | 4.31 | 0.14 |
| Jul | 4.02 | 4.04 | -0.02 |
| Aug | 3.51 | 3.49 | 0.02 |
| Sep | 3.68 | 3.58 | 0.10 |
| Oct | 3.42 | 3.34 | 0.08 |
| Nov | 1.97 | 1.94 | 0.03 |
| Dec | 1.57 | 1.48 | 0.09 |
33.13 | 32.37 | 0.76 |