| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.40 | -0.02 |
| Feb | 0.57 | 0.55 | 0.02 |
| Mar | 1.09 | 1.13 | -0.04 |
| Apr | 2.28 | 2.35 | -0.07 |
| May | 4.12 | 4.12 | 0.00 |
| Jun | 3.34 | 3.30 | 0.04 |
| Jul | 2.90 | 2.88 | 0.02 |
| Aug | 2.05 | 2.17 | -0.12 |
| Sep | 1.54 | 1.46 | 0.08 |
| Oct | 1.59 | 1.66 | -0.07 |
| Nov | 0.56 | 0.59 | -0.03 |
| Dec | 0.42 | 0.45 | -0.03 |
20.84 | 21.06 | -0.22 |