| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.53 | -0.14 |
| Feb | 2.78 | 2.89 | -0.11 |
| Mar | 4.12 | 4.28 | -0.16 |
| Apr | 3.67 | 3.69 | -0.02 |
| May | 3.78 | 3.89 | -0.11 |
| Jun | 4.30 | 4.21 | 0.09 |
| Jul | 4.67 | 4.65 | 0.02 |
| Aug | 4.42 | 4.77 | -0.35 |
| Sep | 4.64 | 4.47 | 0.17 |
| Oct | 3.88 | 4.06 | -0.18 |
| Nov | 3.28 | 3.23 | 0.05 |
| Dec | 4.17 | 4.40 | -0.23 |
47.10 | 48.07 | -0.97 |