| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.61 | -0.22 |
| Feb | 3.12 | 3.19 | -0.07 |
| Mar | 4.42 | 4.65 | -0.23 |
| Apr | 3.37 | 3.54 | -0.17 |
| May | 3.24 | 3.40 | -0.16 |
| Jun | 3.68 | 3.68 | 0.00 |
| Jul | 4.37 | 4.34 | 0.03 |
| Aug | 4.48 | 4.58 | -0.10 |
| Sep | 3.68 | 3.74 | -0.06 |
| Oct | 3.96 | 4.30 | -0.34 |
| Nov | 3.26 | 3.42 | -0.16 |
| Dec | 4.39 | 4.60 | -0.21 |
45.36 | 47.05 | -1.69 |