| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.55 | 0.03 |
| Feb | 3.04 | 3.13 | -0.09 |
| Mar | 3.85 | 3.84 | 0.01 |
| Apr | 3.91 | 3.96 | -0.05 |
| May | 3.82 | 3.78 | 0.04 |
| Jun | 3.94 | 3.80 | 0.14 |
| Jul | 4.64 | 4.27 | 0.37 |
| Aug | 4.18 | 4.06 | 0.12 |
| Sep | 3.78 | 3.99 | -0.21 |
| Oct | 3.11 | 3.02 | 0.09 |
| Nov | 3.26 | 3.21 | 0.05 |
| Dec | 3.61 | 3.78 | -0.17 |
44.72 | 44.39 | 0.33 |