| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.41 | 0.00 |
| Feb | 0.54 | 0.49 | 0.05 |
| Mar | 1.13 | 1.01 | 0.12 |
| Apr | 2.21 | 2.15 | 0.06 |
| May | 3.25 | 3.27 | -0.02 |
| Jun | 3.09 | 3.25 | -0.16 |
| Jul | 2.35 | 2.23 | 0.12 |
| Aug | 1.70 | 1.84 | -0.14 |
| Sep | 1.23 | 1.30 | -0.07 |
| Oct | 1.64 | 1.72 | -0.08 |
| Nov | 0.48 | 0.55 | -0.07 |
| Dec | 0.38 | 0.43 | -0.05 |
18.41 | 18.65 | -0.24 |