| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.12 | 4.30 | -0.18 |
| Feb | 3.40 | 3.52 | -0.12 |
| Mar | 4.10 | 4.18 | -0.08 |
| Apr | 4.10 | 4.30 | -0.20 |
| May | 3.97 | 4.19 | -0.22 |
| Jun | 4.35 | 4.58 | -0.23 |
| Jul | 4.47 | 4.78 | -0.31 |
| Aug | 4.44 | 4.79 | -0.35 |
| Sep | 4.18 | 4.34 | -0.16 |
| Oct | 3.34 | 3.38 | -0.04 |
| Nov | 3.63 | 3.68 | -0.05 |
| Dec | 4.03 | 4.30 | -0.27 |
48.13 | 50.34 | -2.21 |