| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.29 | -0.14 |
| Feb | 3.61 | 3.74 | -0.13 |
| Mar | 4.59 | 4.69 | -0.10 |
| Apr | 4.19 | 4.24 | -0.05 |
| May | 3.72 | 3.84 | -0.12 |
| Jun | 4.20 | 4.15 | 0.05 |
| Jul | 4.09 | 3.94 | 0.15 |
| Aug | 4.52 | 4.42 | 0.10 |
| Sep | 3.79 | 3.79 | 0.00 |
| Oct | 3.53 | 3.83 | -0.30 |
| Nov | 3.70 | 3.75 | -0.05 |
| Dec | 4.32 | 4.52 | -0.20 |
48.41 | 49.20 | -0.79 |