| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.53 | 2.05 | -0.52 |
| Feb | 1.47 | 1.88 | -0.41 |
| Mar | 1.52 | 1.72 | -0.20 |
| Apr | 2.06 | 2.25 | -0.19 |
| May | 1.84 | 1.99 | -0.15 |
| Jun | 1.19 | 1.18 | 0.01 |
| Jul | 1.23 | 1.48 | -0.25 |
| Aug | 1.31 | 1.30 | 0.01 |
| Sep | 1.75 | 1.83 | -0.08 |
| Oct | 1.78 | 1.81 | -0.03 |
| Nov | 1.45 | 1.78 | -0.33 |
| Dec | 1.40 | 1.94 | -0.54 |
18.53 | 21.21 | -2.68 |