| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.39 | 4.29 | 0.10 |
| Feb | 5.15 | 5.02 | 0.13 |
| Mar | 3.65 | 3.50 | 0.15 |
| Apr | 1.85 | 1.62 | 0.23 |
| May | 0.85 | 0.76 | 0.09 |
| Jun | 0.10 | 0.10 | 0.00 |
| Jul | 0.25 | 0.31 | -0.06 |
| Aug | 0.43 | 0.31 | 0.12 |
| Sep | 0.41 | 0.40 | 0.01 |
| Oct | 0.94 | 0.86 | 0.08 |
| Nov | 1.94 | 1.81 | 0.13 |
| Dec | 3.68 | 3.35 | 0.33 |
23.64 | 22.33 | 1.31 |