| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.59 | 0.00 |
| Feb | 0.49 | 0.43 | 0.06 |
| Mar | 1.20 | 1.13 | 0.07 |
| Apr | 1.28 | 1.25 | 0.03 |
| May | 2.22 | 2.26 | -0.04 |
| Jun | 2.89 | 2.83 | 0.06 |
| Jul | 2.53 | 2.55 | -0.02 |
| Aug | 2.83 | 2.88 | -0.05 |
| Sep | 1.70 | 1.70 | 0.00 |
| Oct | 1.83 | 1.94 | -0.11 |
| Nov | 0.69 | 0.71 | -0.02 |
| Dec | 0.70 | 0.70 | 0.00 |
18.95 | 18.97 | -0.02 |