| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.80 | 3.96 | -0.16 |
| Feb | 3.59 | 3.56 | 0.03 |
| Mar | 4.72 | 4.84 | -0.12 |
| Apr | 4.23 | 4.40 | -0.17 |
| May | 3.60 | 3.65 | -0.05 |
| Jun | 4.09 | 4.07 | 0.02 |
| Jul | 3.45 | 3.49 | -0.04 |
| Aug | 3.57 | 3.64 | -0.07 |
| Sep | 3.85 | 3.85 | 0.00 |
| Oct | 4.75 | 4.90 | -0.15 |
| Nov | 4.02 | 4.10 | -0.08 |
| Dec | 4.81 | 4.91 | -0.10 |
48.48 | 49.37 | -0.89 |