| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.29 | 4.23 | 0.06 |
| Feb | 4.67 | 4.65 | 0.02 |
| Mar | 5.08 | 5.03 | 0.05 |
| Apr | 4.93 | 4.82 | 0.11 |
| May | 5.03 | 5.28 | -0.25 |
| Jun | 4.32 | 4.26 | 0.06 |
| Jul | 4.49 | 4.47 | 0.02 |
| Aug | 3.68 | 3.49 | 0.19 |
| Sep | 3.93 | 3.90 | 0.03 |
| Oct | 3.51 | 3.43 | 0.08 |
| Nov | 3.74 | 3.84 | -0.10 |
| Dec | 4.93 | 4.99 | -0.06 |
52.60 | 52.39 | 0.21 |