| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.83 | 3.11 | -0.28 |
| Feb | 2.29 | 2.61 | -0.32 |
| Mar | 2.90 | 3.28 | -0.38 |
| Apr | 3.31 | 3.45 | -0.14 |
| May | 3.65 | 3.84 | -0.19 |
| Jun | 4.27 | 4.43 | -0.16 |
| Jul | 4.16 | 4.48 | -0.32 |
| Aug | 3.92 | 4.20 | -0.28 |
| Sep | 3.40 | 3.74 | -0.34 |
| Oct | 4.12 | 4.36 | -0.24 |
| Nov | 3.11 | 3.34 | -0.23 |
| Dec | 3.36 | 3.91 | -0.55 |
41.32 | 44.75 | -3.43 |