| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.66 | -0.12 |
| Feb | 3.43 | 3.60 | -0.17 |
| Mar | 3.63 | 3.71 | -0.08 |
| Apr | 3.18 | 3.24 | -0.06 |
| May | 3.60 | 3.72 | -0.12 |
| Jun | 5.15 | 5.24 | -0.09 |
| Jul | 5.32 | 5.54 | -0.22 |
| Aug | 5.19 | 5.43 | -0.24 |
| Sep | 4.61 | 4.71 | -0.10 |
| Oct | 3.68 | 3.69 | -0.01 |
| Nov | 2.81 | 2.82 | -0.01 |
| Dec | 3.66 | 3.63 | 0.03 |
47.80 | 48.99 | -1.19 |