| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.18 | 5.53 | -0.35 |
| Feb | 4.29 | 4.62 | -0.33 |
| Mar | 5.02 | 5.19 | -0.17 |
| Apr | 5.16 | 5.68 | -0.52 |
| May | 4.82 | 5.49 | -0.67 |
| Jun | 5.14 | 5.16 | -0.02 |
| Jul | 4.96 | 5.64 | -0.68 |
| Aug | 5.52 | 5.85 | -0.33 |
| Sep | 5.02 | 5.46 | -0.44 |
| Oct | 4.76 | 4.65 | 0.11 |
| Nov | 4.78 | 5.03 | -0.25 |
| Dec | 5.22 | 5.95 | -0.73 |
59.87 | 64.25 | -4.38 |