| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.92 | -0.20 |
| Feb | 0.77 | 0.87 | -0.10 |
| Mar | 1.54 | 1.65 | -0.11 |
| Apr | 2.87 | 3.07 | -0.20 |
| May | 4.12 | 4.38 | -0.26 |
| Jun | 4.41 | 4.59 | -0.18 |
| Jul | 4.18 | 4.21 | -0.03 |
| Aug | 4.24 | 4.20 | 0.04 |
| Sep | 3.22 | 3.32 | -0.10 |
| Oct | 2.79 | 2.74 | 0.05 |
| Nov | 1.55 | 1.66 | -0.11 |
| Dec | 1.01 | 1.29 | -0.28 |
31.42 | 32.90 | -1.48 |