| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.46 | 0.48 | -0.02 |
| Feb | 0.53 | 0.55 | -0.02 |
| Mar | 1.12 | 1.16 | -0.04 |
| Apr | 1.58 | 1.73 | -0.15 |
| May | 2.83 | 3.18 | -0.35 |
| Jun | 3.08 | 3.13 | -0.05 |
| Jul | 3.42 | 3.02 | 0.40 |
| Aug | 2.80 | 2.97 | -0.17 |
| Sep | 1.43 | 1.39 | 0.04 |
| Oct | 1.54 | 1.52 | 0.02 |
| Nov | 0.61 | 0.59 | 0.02 |
| Dec | 0.68 | 0.78 | -0.10 |
20.08 | 20.50 | -0.42 |