| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.64 | -0.10 |
| Feb | 2.91 | 2.88 | 0.03 |
| Mar | 4.15 | 4.04 | 0.11 |
| Apr | 3.66 | 3.57 | 0.09 |
| May | 3.78 | 3.61 | 0.17 |
| Jun | 4.42 | 4.40 | 0.02 |
| Jul | 4.84 | 4.78 | 0.06 |
| Aug | 4.88 | 4.70 | 0.18 |
| Sep | 5.05 | 5.23 | -0.18 |
| Oct | 3.52 | 3.50 | 0.02 |
| Nov | 3.43 | 3.37 | 0.06 |
| Dec | 3.54 | 3.49 | 0.05 |
47.72 | 47.21 | 0.51 |