| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.36 | 3.52 | -0.16 |
| Feb | 2.65 | 2.87 | -0.22 |
| Mar | 3.63 | 3.85 | -0.22 |
| Apr | 3.83 | 3.87 | -0.04 |
| May | 3.92 | 4.02 | -0.10 |
| Jun | 4.39 | 4.57 | -0.18 |
| Jul | 4.86 | 4.96 | -0.10 |
| Aug | 4.73 | 4.70 | 0.03 |
| Sep | 4.57 | 4.68 | -0.11 |
| Oct | 4.38 | 4.53 | -0.15 |
| Nov | 3.19 | 3.38 | -0.19 |
| Dec | 3.96 | 4.22 | -0.26 |
47.47 | 49.17 | -1.70 |