| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 4.08 | -0.18 |
| Feb | 3.28 | 3.71 | -0.43 |
| Mar | 4.24 | 4.65 | -0.41 |
| Apr | 4.04 | 4.14 | -0.10 |
| May | 3.12 | 3.35 | -0.23 |
| Jun | 3.29 | 3.26 | 0.03 |
| Jul | 2.41 | 2.69 | -0.28 |
| Aug | 3.44 | 3.31 | 0.13 |
| Sep | 3.70 | 3.84 | -0.14 |
| Oct | 4.30 | 4.47 | -0.17 |
| Nov | 3.97 | 4.09 | -0.12 |
| Dec | 4.69 | 4.92 | -0.23 |
44.38 | 46.51 | -2.13 |