| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.38 | 0.48 | -0.10 |
| Feb | 0.54 | 0.59 | -0.05 |
| Mar | 0.99 | 1.07 | -0.08 |
| Apr | 2.46 | 2.61 | -0.15 |
| May | 3.46 | 3.50 | -0.04 |
| Jun | 3.66 | 3.79 | -0.13 |
| Jul | 2.53 | 2.66 | -0.13 |
| Aug | 2.54 | 2.51 | 0.03 |
| Sep | 1.92 | 2.04 | -0.12 |
| Oct | 1.70 | 1.84 | -0.14 |
| Nov | 0.64 | 0.74 | -0.10 |
| Dec | 0.47 | 0.57 | -0.10 |
21.29 | 22.40 | -1.11 |