| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.48 | 0.39 | 0.09 |
| Feb | 0.56 | 0.45 | 0.11 |
| Mar | 1.06 | 1.12 | -0.06 |
| Apr | 1.95 | 1.89 | 0.06 |
| May | 2.58 | 2.84 | -0.26 |
| Jun | 2.10 | 1.90 | 0.20 |
| Jul | 2.76 | 2.16 | 0.60 |
| Aug | 2.17 | 2.21 | -0.04 |
| Sep | 1.25 | 0.96 | 0.29 |
| Oct | 1.00 | 0.96 | 0.04 |
| Nov | 0.68 | 0.59 | 0.09 |
| Dec | 0.47 | 0.42 | 0.05 |
17.06 | 15.89 | 1.17 |