| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.74 | 4.65 | 0.09 |
| Feb | 4.73 | 4.75 | -0.02 |
| Mar | 4.87 | 4.82 | 0.05 |
| Apr | 3.96 | 4.03 | -0.07 |
| May | 3.76 | 3.85 | -0.09 |
| Jun | 4.44 | 4.42 | 0.02 |
| Jul | 4.89 | 4.84 | 0.05 |
| Aug | 4.31 | 4.51 | -0.20 |
| Sep | 4.01 | 4.13 | -0.12 |
| Oct | 3.48 | 3.50 | -0.02 |
| Nov | 4.04 | 4.21 | -0.17 |
| Dec | 4.65 | 4.69 | -0.04 |
51.88 | 52.40 | -0.52 |