| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.40 | 0.34 | 0.06 |
| Feb | 0.33 | 0.28 | 0.05 |
| Mar | 0.39 | 0.34 | 0.05 |
| Apr | 0.89 | 0.81 | 0.08 |
| May | 1.71 | 1.61 | 0.10 |
| Jun | 2.61 | 2.53 | 0.08 |
| Jul | 1.13 | 1.25 | -0.12 |
| Aug | 1.07 | 1.04 | 0.03 |
| Sep | 1.05 | 1.06 | -0.01 |
| Oct | 0.74 | 0.67 | 0.07 |
| Nov | 0.50 | 0.52 | -0.02 |
| Dec | 0.33 | 0.30 | 0.03 |
11.15 | 10.75 | 0.40 |