| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.20 | 2.24 | -0.04 |
| Feb | 1.84 | 1.74 | 0.10 |
| Mar | 2.12 | 2.11 | 0.01 |
| Apr | 3.31 | 3.34 | -0.03 |
| May | 3.81 | 3.87 | -0.06 |
| Jun | 3.79 | 3.71 | 0.08 |
| Jul | 3.27 | 3.26 | 0.01 |
| Aug | 3.52 | 3.43 | 0.09 |
| Sep | 2.88 | 2.96 | -0.08 |
| Oct | 3.35 | 3.19 | 0.16 |
| Nov | 2.53 | 2.53 | 0.00 |
| Dec | 1.99 | 1.95 | 0.04 |
34.61 | 34.33 | 0.28 |