| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.53 | 0.52 | 0.01 |
| Feb | 0.70 | 0.65 | 0.05 |
| Mar | 1.07 | 1.03 | 0.04 |
| Apr | 2.48 | 2.35 | 0.13 |
| May | 3.18 | 3.20 | -0.02 |
| Jun | 3.73 | 3.74 | -0.01 |
| Jul | 2.95 | 3.04 | -0.09 |
| Aug | 2.68 | 2.55 | 0.13 |
| Sep | 2.35 | 2.28 | 0.07 |
| Oct | 2.00 | 2.05 | -0.05 |
| Nov | 0.75 | 0.77 | -0.02 |
| Dec | 0.63 | 0.61 | 0.02 |
23.05 | 22.79 | 0.26 |