| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.50 | 1.23 | 0.27 |
| Feb | 1.41 | 1.35 | 0.06 |
| Mar | 1.46 | 1.49 | -0.03 |
| Apr | 2.16 | 2.17 | -0.01 |
| May | 1.85 | 1.75 | 0.10 |
| Jun | 1.25 | 1.11 | 0.14 |
| Jul | 1.66 | 1.31 | 0.35 |
| Aug | 1.82 | 1.70 | 0.12 |
| Sep | 1.70 | 1.46 | 0.24 |
| Oct | 1.47 | 1.39 | 0.08 |
| Nov | 1.32 | 1.28 | 0.04 |
| Dec | 1.44 | 1.33 | 0.11 |
19.04 | 17.57 | 1.47 |