| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.72 | -0.04 |
| Feb | 0.68 | 0.71 | -0.03 |
| Mar | 1.15 | 1.19 | -0.04 |
| Apr | 1.99 | 2.16 | -0.17 |
| May | 3.09 | 3.20 | -0.11 |
| Jun | 4.33 | 4.21 | 0.12 |
| Jul | 4.06 | 4.10 | -0.04 |
| Aug | 3.22 | 3.25 | -0.03 |
| Sep | 2.97 | 3.03 | -0.06 |
| Oct | 2.70 | 2.79 | -0.09 |
| Nov | 1.16 | 1.19 | -0.03 |
| Dec | 0.89 | 0.97 | -0.08 |
26.92 | 27.52 | -0.60 |