| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.64 | -0.01 |
| Feb | 3.43 | 3.57 | -0.14 |
| Mar | 3.54 | 3.77 | -0.23 |
| Apr | 3.21 | 3.25 | -0.04 |
| May | 3.45 | 3.35 | 0.10 |
| Jun | 5.66 | 5.54 | 0.12 |
| Jul | 5.68 | 5.34 | 0.34 |
| Aug | 5.72 | 5.85 | -0.13 |
| Sep | 4.20 | 4.17 | 0.03 |
| Oct | 3.16 | 3.24 | -0.08 |
| Nov | 2.59 | 2.62 | -0.03 |
| Dec | 3.37 | 3.47 | -0.10 |
47.64 | 47.81 | -0.17 |