| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.20 | 2.06 | 0.14 |
| Feb | 1.77 | 1.81 | -0.04 |
| Mar | 2.56 | 2.52 | 0.04 |
| Apr | 2.43 | 2.46 | -0.03 |
| May | 3.96 | 3.79 | 0.17 |
| Jun | 3.38 | 3.32 | 0.06 |
| Jul | 2.30 | 2.53 | -0.23 |
| Aug | 2.45 | 2.32 | 0.13 |
| Sep | 3.56 | 3.67 | -0.11 |
| Oct | 3.48 | 3.82 | -0.34 |
| Nov | 2.53 | 2.64 | -0.11 |
| Dec | 2.18 | 2.38 | -0.20 |
32.80 | 33.32 | -0.52 |