| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.10 | 3.27 | -0.17 |
| Feb | 2.58 | 2.67 | -0.09 |
| Mar | 3.51 | 3.81 | -0.30 |
| Apr | 4.42 | 4.61 | -0.19 |
| May | 4.62 | 4.78 | -0.16 |
| Jun | 4.37 | 4.41 | -0.04 |
| Jul | 3.88 | 3.85 | 0.03 |
| Aug | 3.28 | 3.05 | 0.23 |
| Sep | 3.06 | 3.12 | -0.06 |
| Oct | 3.08 | 3.11 | -0.03 |
| Nov | 2.94 | 3.02 | -0.08 |
| Dec | 3.21 | 3.40 | -0.19 |
42.05 | 43.10 | -1.05 |