| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.60 | -0.11 |
| Feb | 2.77 | 2.81 | -0.04 |
| Mar | 4.10 | 4.18 | -0.08 |
| Apr | 3.68 | 3.83 | -0.15 |
| May | 4.13 | 3.99 | 0.14 |
| Jun | 4.40 | 4.49 | -0.09 |
| Jul | 5.05 | 4.87 | 0.18 |
| Aug | 4.41 | 4.50 | -0.09 |
| Sep | 4.13 | 4.15 | -0.02 |
| Oct | 4.20 | 4.12 | 0.08 |
| Nov | 3.25 | 3.35 | -0.10 |
| Dec | 4.31 | 4.30 | 0.01 |
47.92 | 48.19 | -0.27 |