| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.53 | 0.53 | 0.00 |
| Feb | 0.45 | 0.52 | -0.07 |
| Mar | 0.68 | 0.74 | -0.06 |
| Apr | 1.02 | 0.96 | 0.06 |
| May | 2.35 | 2.46 | -0.11 |
| Jun | 3.72 | 4.00 | -0.28 |
| Jul | 2.52 | 2.70 | -0.18 |
| Aug | 1.97 | 2.09 | -0.12 |
| Sep | 1.60 | 1.66 | -0.06 |
| Oct | 1.33 | 1.38 | -0.05 |
| Nov | 0.67 | 0.78 | -0.11 |
| Dec | 0.59 | 0.66 | -0.07 |
17.43 | 18.48 | -1.05 |