| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.01 | 1.11 | -0.10 |
| Feb | 1.31 | 1.51 | -0.20 |
| Mar | 2.17 | 2.40 | -0.23 |
| Apr | 3.95 | 3.93 | 0.02 |
| May | 5.26 | 5.43 | -0.17 |
| Jun | 4.74 | 5.26 | -0.52 |
| Jul | 4.72 | 4.85 | -0.13 |
| Aug | 4.46 | 4.27 | 0.19 |
| Sep | 3.78 | 4.04 | -0.26 |
| Oct | 3.10 | 3.32 | -0.22 |
| Nov | 1.99 | 2.06 | -0.07 |
| Dec | 1.55 | 1.65 | -0.10 |
38.04 | 39.83 | -1.79 |