| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.85 | -0.14 |
| Feb | 0.78 | 0.89 | -0.11 |
| Mar | 1.50 | 1.56 | -0.06 |
| Apr | 2.87 | 2.97 | -0.10 |
| May | 4.13 | 4.35 | -0.22 |
| Jun | 4.46 | 4.65 | -0.19 |
| Jul | 4.07 | 4.12 | -0.05 |
| Aug | 4.17 | 4.22 | -0.05 |
| Sep | 3.29 | 3.30 | -0.01 |
| Oct | 2.70 | 2.65 | 0.05 |
| Nov | 1.50 | 1.55 | -0.05 |
| Dec | 1.03 | 1.21 | -0.18 |
31.21 | 32.32 | -1.11 |