| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.57 | 0.09 |
| Feb | 4.08 | 3.98 | 0.10 |
| Mar | 5.08 | 4.98 | 0.10 |
| Apr | 5.57 | 5.36 | 0.21 |
| May | 5.48 | 5.42 | 0.06 |
| Jun | 3.55 | 3.43 | 0.12 |
| Jul | 3.66 | 3.73 | -0.07 |
| Aug | 3.65 | 3.38 | 0.27 |
| Sep | 3.33 | 3.29 | 0.04 |
| Oct | 4.28 | 4.10 | 0.18 |
| Nov | 4.76 | 4.88 | -0.12 |
| Dec | 4.96 | 4.98 | -0.02 |
52.06 | 51.10 | 0.96 |