| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.96 | -0.19 |
| Feb | 0.80 | 0.93 | -0.13 |
| Mar | 1.61 | 1.74 | -0.13 |
| Apr | 2.88 | 3.13 | -0.25 |
| May | 4.12 | 4.27 | -0.15 |
| Jun | 4.63 | 4.89 | -0.26 |
| Jul | 4.16 | 4.39 | -0.23 |
| Aug | 4.55 | 4.42 | 0.13 |
| Sep | 3.31 | 3.39 | -0.08 |
| Oct | 2.78 | 2.98 | -0.20 |
| Nov | 1.59 | 1.69 | -0.10 |
| Dec | 1.09 | 1.32 | -0.23 |
32.29 | 34.11 | -1.82 |