| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 6.69 | 6.27 | 0.42 |
| Feb | 4.85 | 4.72 | 0.13 |
| Mar | 4.97 | 4.59 | 0.38 |
| Apr | 3.30 | 3.32 | -0.02 |
| May | 2.13 | 2.34 | -0.21 |
| Jun | 1.19 | 1.40 | -0.21 |
| Jul | 0.26 | 0.30 | -0.04 |
| Aug | 0.41 | 0.43 | -0.02 |
| Sep | 1.34 | 1.40 | -0.06 |
| Oct | 3.51 | 3.47 | 0.04 |
| Nov | 6.41 | 6.29 | 0.12 |
| Dec | 7.72 | 7.48 | 0.24 |
42.78 | 42.01 | 0.77 |