| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.53 | 0.53 | 0.00 |
| Feb | 0.55 | 0.57 | -0.02 |
| Mar | 0.89 | 0.90 | -0.01 |
| Apr | 1.82 | 1.86 | -0.04 |
| May | 3.02 | 3.22 | -0.20 |
| Jun | 3.76 | 3.85 | -0.09 |
| Jul | 3.58 | 3.51 | 0.07 |
| Aug | 2.45 | 2.42 | 0.03 |
| Sep | 2.29 | 2.33 | -0.04 |
| Oct | 2.07 | 2.02 | 0.05 |
| Nov | 0.68 | 0.71 | -0.03 |
| Dec | 0.58 | 0.62 | -0.04 |
22.22 | 22.54 | -0.32 |