| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 4.03 | 0.02 |
| Feb | 3.99 | 4.07 | -0.08 |
| Mar | 4.68 | 4.76 | -0.08 |
| Apr | 4.17 | 4.42 | -0.25 |
| May | 4.73 | 4.95 | -0.22 |
| Jun | 4.19 | 4.29 | -0.10 |
| Jul | 2.99 | 2.96 | 0.03 |
| Aug | 2.73 | 2.81 | -0.08 |
| Sep | 3.33 | 3.51 | -0.18 |
| Oct | 4.53 | 4.36 | 0.17 |
| Nov | 3.85 | 3.73 | 0.12 |
| Dec | 4.50 | 4.66 | -0.16 |
47.74 | 48.55 | -0.81 |