| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.73 | 1.30 | 0.43 |
| Feb | 1.32 | 0.99 | 0.33 |
| Mar | 1.42 | 1.12 | 0.30 |
| Apr | 1.56 | 1.57 | -0.01 |
| May | 1.95 | 1.85 | 0.10 |
| Jun | 1.08 | 1.12 | -0.04 |
| Jul | 0.61 | 0.89 | -0.28 |
| Aug | 0.74 | 0.61 | 0.13 |
| Sep | 1.06 | 0.97 | 0.09 |
| Oct | 1.27 | 1.09 | 0.18 |
| Nov | 1.18 | 1.12 | 0.06 |
| Dec | 1.70 | 1.11 | 0.59 |
15.62 | 13.74 | 1.88 |