| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.54 | 0.45 | 0.09 |
| Feb | 0.57 | 0.49 | 0.08 |
| Mar | 1.15 | 1.10 | 0.05 |
| Apr | 1.92 | 1.69 | 0.23 |
| May | 2.26 | 2.31 | -0.05 |
| Jun | 1.90 | 1.79 | 0.11 |
| Jul | 3.12 | 3.06 | 0.06 |
| Aug | 2.69 | 3.08 | -0.39 |
| Sep | 1.42 | 1.67 | -0.25 |
| Oct | 0.93 | 0.78 | 0.15 |
| Nov | 0.63 | 0.57 | 0.06 |
| Dec | 0.48 | 0.43 | 0.05 |
17.61 | 17.42 | 0.19 |