| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.38 | 0.00 |
| Feb | 0.52 | 0.50 | 0.02 |
| Mar | 0.97 | 1.02 | -0.05 |
| Apr | 2.04 | 2.07 | -0.03 |
| May | 3.00 | 3.10 | -0.10 |
| Jun | 3.21 | 3.33 | -0.12 |
| Jul | 2.41 | 2.71 | -0.30 |
| Aug | 1.99 | 2.09 | -0.10 |
| Sep | 1.47 | 1.54 | -0.07 |
| Oct | 1.35 | 1.38 | -0.03 |
| Nov | 0.57 | 0.59 | -0.02 |
| Dec | 0.42 | 0.48 | -0.06 |
18.33 | 19.19 | -0.86 |