| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.59 | 2.78 | -0.19 |
| Feb | 2.09 | 2.05 | 0.04 |
| Mar | 2.92 | 2.90 | 0.02 |
| Apr | 3.58 | 3.60 | -0.02 |
| May | 3.95 | 4.07 | -0.12 |
| Jun | 4.32 | 4.28 | 0.04 |
| Jul | 3.92 | 3.88 | 0.04 |
| Aug | 3.52 | 3.55 | -0.03 |
| Sep | 3.49 | 3.50 | -0.01 |
| Oct | 3.19 | 3.15 | 0.04 |
| Nov | 2.81 | 2.83 | -0.02 |
| Dec | 2.64 | 2.81 | -0.17 |
39.02 | 39.40 | -0.38 |