| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.41 | 0.00 |
| Feb | 0.31 | 0.31 | 0.00 |
| Mar | 0.99 | 0.95 | 0.04 |
| Apr | 1.28 | 1.35 | -0.07 |
| May | 1.88 | 1.98 | -0.10 |
| Jun | 2.40 | 2.43 | -0.03 |
| Jul | 2.91 | 2.78 | 0.13 |
| Aug | 2.89 | 2.90 | -0.01 |
| Sep | 1.37 | 1.38 | -0.01 |
| Oct | 1.49 | 1.53 | -0.04 |
| Nov | 0.52 | 0.49 | 0.03 |
| Dec | 0.58 | 0.64 | -0.06 |
17.03 | 17.15 | -0.12 |