| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.61 | 1.75 | -0.14 |
| Feb | 1.49 | 1.47 | 0.02 |
| Mar | 2.20 | 2.26 | -0.06 |
| Apr | 1.79 | 1.82 | -0.03 |
| May | 3.63 | 3.65 | -0.02 |
| Jun | 3.65 | 3.25 | 0.40 |
| Jul | 2.39 | 2.48 | -0.09 |
| Aug | 2.18 | 2.06 | 0.12 |
| Sep | 5.57 | 5.66 | -0.09 |
| Oct | 3.32 | 3.72 | -0.40 |
| Nov | 2.22 | 2.32 | -0.10 |
| Dec | 1.67 | 1.54 | 0.13 |
31.72 | 31.98 | -0.26 |