| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.31 | 2.35 | -0.04 |
| Feb | 1.95 | 2.06 | -0.11 |
| Mar | 2.78 | 2.73 | 0.05 |
| Apr | 4.03 | 4.04 | -0.01 |
| May | 4.39 | 4.49 | -0.10 |
| Jun | 4.70 | 4.76 | -0.06 |
| Jul | 4.21 | 4.33 | -0.12 |
| Aug | 3.47 | 3.48 | -0.01 |
| Sep | 3.07 | 3.17 | -0.10 |
| Oct | 3.26 | 3.30 | -0.04 |
| Nov | 3.12 | 3.13 | -0.01 |
| Dec | 2.36 | 2.39 | -0.03 |
39.65 | 40.23 | -0.58 |