| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.68 | 2.83 | -0.15 |
| Feb | 2.20 | 2.28 | -0.08 |
| Mar | 2.98 | 3.12 | -0.14 |
| Apr | 3.84 | 3.88 | -0.04 |
| May | 4.30 | 4.29 | 0.01 |
| Jun | 4.59 | 4.62 | -0.03 |
| Jul | 4.19 | 4.21 | -0.02 |
| Aug | 3.35 | 3.46 | -0.11 |
| Sep | 3.08 | 3.13 | -0.05 |
| Oct | 2.73 | 2.80 | -0.07 |
| Nov | 2.80 | 2.86 | -0.06 |
| Dec | 2.79 | 2.91 | -0.12 |
39.53 | 40.39 | -0.86 |