| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.26 | 4.38 | -0.12 |
| Feb | 4.21 | 4.29 | -0.08 |
| Mar | 4.56 | 4.54 | 0.02 |
| Apr | 3.59 | 3.87 | -0.28 |
| May | 2.77 | 2.83 | -0.06 |
| Jun | 4.34 | 4.38 | -0.04 |
| Jul | 4.99 | 4.87 | 0.12 |
| Aug | 4.36 | 4.47 | -0.11 |
| Sep | 3.63 | 3.78 | -0.15 |
| Oct | 2.77 | 2.86 | -0.09 |
| Nov | 3.34 | 3.42 | -0.08 |
| Dec | 4.64 | 4.61 | 0.03 |
47.46 | 48.30 | -0.84 |