| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.68 | -0.18 |
| Feb | 3.29 | 3.48 | -0.19 |
| Mar | 4.13 | 4.23 | -0.10 |
| Apr | 4.24 | 4.32 | -0.08 |
| May | 3.64 | 3.63 | 0.01 |
| Jun | 4.32 | 4.45 | -0.13 |
| Jul | 3.38 | 3.30 | 0.08 |
| Aug | 3.20 | 3.18 | 0.02 |
| Sep | 4.00 | 3.89 | 0.11 |
| Oct | 5.19 | 5.23 | -0.04 |
| Nov | 4.45 | 4.49 | -0.04 |
| Dec | 4.38 | 4.62 | -0.24 |
47.72 | 48.50 | -0.78 |