| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.12 | 3.28 | -0.16 |
| Feb | 2.80 | 2.86 | -0.06 |
| Mar | 3.97 | 4.13 | -0.16 |
| Apr | 3.69 | 3.61 | 0.08 |
| May | 4.31 | 4.24 | 0.07 |
| Jun | 4.34 | 4.24 | 0.10 |
| Jul | 4.46 | 4.32 | 0.14 |
| Aug | 4.26 | 3.95 | 0.31 |
| Sep | 4.56 | 4.57 | -0.01 |
| Oct | 4.29 | 4.28 | 0.01 |
| Nov | 3.52 | 3.32 | 0.20 |
| Dec | 3.72 | 3.95 | -0.23 |
47.04 | 46.75 | 0.29 |