| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.41 | 0.27 |
| Feb | 3.51 | 3.46 | 0.05 |
| Mar | 4.49 | 4.28 | 0.21 |
| Apr | 4.06 | 4.05 | 0.01 |
| May | 4.91 | 4.72 | 0.19 |
| Jun | 4.65 | 4.62 | 0.03 |
| Jul | 5.18 | 5.19 | -0.01 |
| Aug | 3.64 | 3.68 | -0.04 |
| Sep | 3.50 | 3.41 | 0.09 |
| Oct | 3.22 | 3.10 | 0.12 |
| Nov | 3.14 | 3.02 | 0.12 |
| Dec | 4.21 | 4.02 | 0.19 |
48.19 | 46.96 | 1.23 |