| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.13 | 3.25 | -0.12 |
| Feb | 2.22 | 2.53 | -0.31 |
| Mar | 2.70 | 3.01 | -0.31 |
| Apr | 3.48 | 3.49 | -0.01 |
| May | 3.32 | 3.42 | -0.10 |
| Jun | 3.55 | 3.70 | -0.15 |
| Jul | 3.65 | 3.48 | 0.17 |
| Aug | 3.42 | 3.31 | 0.11 |
| Sep | 4.10 | 4.11 | -0.01 |
| Oct | 3.90 | 4.13 | -0.23 |
| Nov | 3.47 | 3.80 | -0.33 |
| Dec | 3.53 | 3.68 | -0.15 |
40.47 | 41.91 | -1.44 |