| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.52 | 0.55 | -0.03 |
| Feb | 0.55 | 0.58 | -0.03 |
| Mar | 1.29 | 1.33 | -0.04 |
| Apr | 1.75 | 1.84 | -0.09 |
| May | 2.74 | 2.84 | -0.10 |
| Jun | 3.31 | 3.41 | -0.10 |
| Jul | 3.11 | 3.12 | -0.01 |
| Aug | 2.88 | 3.00 | -0.12 |
| Sep | 1.42 | 1.40 | 0.02 |
| Oct | 1.78 | 1.88 | -0.10 |
| Nov | 0.64 | 0.66 | -0.02 |
| Dec | 0.79 | 0.89 | -0.10 |
20.78 | 21.50 | -0.72 |