| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.28 | 4.11 | 0.17 |
| Feb | 3.86 | 3.90 | -0.04 |
| Mar | 3.24 | 3.12 | 0.12 |
| Apr | 1.38 | 1.31 | 0.07 |
| May | 0.54 | 0.55 | -0.01 |
| Jun | 0.11 | 0.13 | -0.02 |
| Jul | 0.02 | 0.02 | 0.00 |
| Aug | 0.02 | 0.01 | 0.01 |
| Sep | 0.07 | 0.04 | 0.03 |
| Oct | 0.84 | 0.74 | 0.10 |
| Nov | 1.71 | 1.61 | 0.10 |
| Dec | 3.50 | 3.15 | 0.35 |
19.57 | 18.69 | 0.88 |