| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.85 | -0.11 |
| Feb | 0.76 | 0.87 | -0.11 |
| Mar | 1.51 | 1.52 | -0.01 |
| Apr | 2.91 | 2.87 | 0.04 |
| May | 4.12 | 4.23 | -0.11 |
| Jun | 4.89 | 4.56 | 0.33 |
| Jul | 3.96 | 3.96 | 0.00 |
| Aug | 4.16 | 4.39 | -0.23 |
| Sep | 3.35 | 3.18 | 0.17 |
| Oct | 2.49 | 2.45 | 0.04 |
| Nov | 1.49 | 1.50 | -0.01 |
| Dec | 1.08 | 1.18 | -0.10 |
31.46 | 31.56 | -0.10 |