| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.65 | 1.63 | 0.02 |
| Feb | 1.23 | 1.11 | 0.12 |
| Mar | 1.77 | 1.70 | 0.07 |
| Apr | 2.84 | 2.81 | 0.03 |
| May | 3.11 | 3.15 | -0.04 |
| Jun | 3.25 | 3.17 | 0.08 |
| Jul | 3.30 | 2.97 | 0.33 |
| Aug | 2.98 | 2.89 | 0.09 |
| Sep | 3.36 | 3.22 | 0.14 |
| Oct | 3.40 | 3.38 | 0.02 |
| Nov | 2.32 | 2.28 | 0.04 |
| Dec | 1.96 | 1.76 | 0.20 |
31.17 | 30.07 | 1.10 |