| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.46 | 0.19 |
| Feb | 3.83 | 3.94 | -0.11 |
| Mar | 5.13 | 5.21 | -0.08 |
| Apr | 5.34 | 5.40 | -0.06 |
| May | 5.53 | 5.56 | -0.03 |
| Jun | 3.47 | 3.52 | -0.05 |
| Jul | 3.73 | 3.60 | 0.13 |
| Aug | 3.65 | 3.75 | -0.10 |
| Sep | 3.52 | 3.73 | -0.21 |
| Oct | 4.08 | 4.12 | -0.04 |
| Nov | 4.96 | 4.68 | 0.28 |
| Dec | 4.67 | 4.72 | -0.05 |
51.56 | 51.69 | -0.13 |