| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.57 | 0.59 | -0.02 |
| Feb | 0.62 | 0.62 | 0.00 |
| Mar | 1.40 | 1.33 | 0.07 |
| Apr | 1.97 | 1.87 | 0.10 |
| May | 3.12 | 3.14 | -0.02 |
| Jun | 3.53 | 3.32 | 0.21 |
| Jul | 3.27 | 3.04 | 0.23 |
| Aug | 3.08 | 3.02 | 0.06 |
| Sep | 1.49 | 1.46 | 0.03 |
| Oct | 2.01 | 1.94 | 0.07 |
| Nov | 0.80 | 0.77 | 0.03 |
| Dec | 0.89 | 0.90 | -0.01 |
22.75 | 22.00 | 0.75 |