| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.67 | -0.04 |
| Feb | 0.83 | 0.85 | -0.02 |
| Mar | 1.77 | 1.84 | -0.07 |
| Apr | 2.52 | 2.68 | -0.16 |
| May | 2.45 | 2.64 | -0.19 |
| Jun | 1.88 | 1.90 | -0.02 |
| Jul | 2.30 | 2.71 | -0.41 |
| Aug | 2.23 | 2.56 | -0.33 |
| Sep | 1.68 | 1.78 | -0.10 |
| Oct | 1.23 | 1.34 | -0.11 |
| Nov | 0.82 | 0.93 | -0.11 |
| Dec | 0.65 | 0.74 | -0.09 |
18.99 | 20.64 | -1.65 |