| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.43 | -0.01 |
| Feb | 0.41 | 0.39 | 0.02 |
| Mar | 1.09 | 1.12 | -0.03 |
| Apr | 1.57 | 1.50 | 0.07 |
| May | 2.22 | 2.19 | 0.03 |
| Jun | 2.95 | 2.79 | 0.16 |
| Jul | 2.99 | 2.85 | 0.14 |
| Aug | 2.85 | 2.90 | -0.05 |
| Sep | 1.28 | 1.37 | -0.09 |
| Oct | 1.61 | 1.63 | -0.02 |
| Nov | 0.54 | 0.54 | 0.00 |
| Dec | 0.62 | 0.72 | -0.10 |
18.55 | 18.43 | 0.12 |