| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.30 | 4.40 | -0.10 |
| Feb | 4.04 | 4.06 | -0.02 |
| Mar | 4.55 | 4.60 | -0.05 |
| Apr | 3.36 | 3.33 | 0.03 |
| May | 2.94 | 2.57 | 0.37 |
| Jun | 5.69 | 5.48 | 0.21 |
| Jul | 5.65 | 5.37 | 0.28 |
| Aug | 5.03 | 5.33 | -0.30 |
| Sep | 4.30 | 4.34 | -0.04 |
| Oct | 3.01 | 2.82 | 0.19 |
| Nov | 2.46 | 2.63 | -0.17 |
| Dec | 3.81 | 3.65 | 0.16 |
49.14 | 48.58 | 0.56 |