| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.31 | 1.35 | -0.04 |
| Feb | 1.64 | 1.74 | -0.10 |
| Mar | 2.60 | 2.61 | -0.01 |
| Apr | 4.27 | 4.17 | 0.10 |
| May | 5.68 | 5.69 | -0.01 |
| Jun | 5.19 | 5.52 | -0.33 |
| Jul | 4.66 | 4.48 | 0.18 |
| Aug | 4.31 | 4.21 | 0.10 |
| Sep | 4.06 | 4.19 | -0.13 |
| Oct | 3.35 | 3.46 | -0.11 |
| Nov | 2.36 | 2.36 | 0.00 |
| Dec | 1.77 | 1.79 | -0.02 |
41.20 | 41.57 | -0.37 |