| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.19 | 4.30 | -0.11 |
| Feb | 3.68 | 3.82 | -0.14 |
| Mar | 4.56 | 4.64 | -0.08 |
| Apr | 4.28 | 4.32 | -0.04 |
| May | 3.79 | 3.93 | -0.14 |
| Jun | 4.26 | 4.27 | -0.01 |
| Jul | 4.27 | 4.23 | 0.04 |
| Aug | 4.44 | 4.52 | -0.08 |
| Sep | 3.87 | 3.99 | -0.12 |
| Oct | 3.58 | 3.77 | -0.19 |
| Nov | 3.78 | 3.92 | -0.14 |
| Dec | 4.31 | 4.64 | -0.33 |
49.01 | 50.35 | -1.34 |