| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.27 | 2.29 | -0.02 |
| Feb | 1.94 | 2.02 | -0.08 |
| Mar | 2.36 | 2.35 | 0.01 |
| Apr | 3.70 | 3.69 | 0.01 |
| May | 4.36 | 4.40 | -0.04 |
| Jun | 4.62 | 4.62 | 0.00 |
| Jul | 4.49 | 4.39 | 0.10 |
| Aug | 4.02 | 4.21 | -0.19 |
| Sep | 3.45 | 3.42 | 0.03 |
| Oct | 3.41 | 3.51 | -0.10 |
| Nov | 2.70 | 2.72 | -0.02 |
| Dec | 2.16 | 2.22 | -0.06 |
39.48 | 39.84 | -0.36 |