| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.48 | 0.04 |
| Feb | 3.51 | 3.40 | 0.11 |
| Mar | 4.73 | 4.66 | 0.07 |
| Apr | 5.01 | 4.99 | 0.02 |
| May | 5.52 | 5.63 | -0.11 |
| Jun | 4.04 | 3.87 | 0.17 |
| Jul | 3.84 | 3.52 | 0.32 |
| Aug | 3.61 | 3.31 | 0.30 |
| Sep | 3.91 | 3.83 | 0.08 |
| Oct | 4.05 | 3.93 | 0.12 |
| Nov | 4.90 | 4.79 | 0.11 |
| Dec | 4.39 | 4.50 | -0.11 |
51.03 | 49.91 | 1.12 |