| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.45 | 0.50 | -0.05 |
| Feb | 0.45 | 0.46 | -0.01 |
| Mar | 0.70 | 0.77 | -0.07 |
| Apr | 1.16 | 1.15 | 0.01 |
| May | 2.58 | 2.60 | -0.02 |
| Jun | 3.33 | 3.45 | -0.12 |
| Jul | 3.35 | 3.61 | -0.26 |
| Aug | 2.32 | 2.42 | -0.10 |
| Sep | 1.98 | 1.99 | -0.01 |
| Oct | 1.52 | 1.69 | -0.17 |
| Nov | 0.60 | 0.68 | -0.08 |
| Dec | 0.61 | 0.69 | -0.08 |
19.05 | 20.01 | -0.96 |