| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.39 | 0.02 |
| Feb | 0.54 | 0.55 | -0.01 |
| Mar | 0.75 | 0.74 | 0.01 |
| Apr | 1.55 | 1.62 | -0.07 |
| May | 2.95 | 2.75 | 0.20 |
| Jun | 3.39 | 3.26 | 0.13 |
| Jul | 2.77 | 2.65 | 0.12 |
| Aug | 2.31 | 2.20 | 0.11 |
| Sep | 1.68 | 1.60 | 0.08 |
| Oct | 1.80 | 1.68 | 0.12 |
| Nov | 0.53 | 0.52 | 0.01 |
| Dec | 0.48 | 0.49 | -0.01 |
19.16 | 18.45 | 0.71 |