| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.72 | -0.07 |
| Feb | 2.94 | 3.03 | -0.09 |
| Mar | 3.95 | 4.04 | -0.09 |
| Apr | 3.78 | 3.89 | -0.11 |
| May | 3.70 | 3.55 | 0.15 |
| Jun | 4.34 | 4.12 | 0.22 |
| Jul | 4.24 | 4.22 | 0.02 |
| Aug | 4.47 | 4.41 | 0.06 |
| Sep | 4.39 | 4.62 | -0.23 |
| Oct | 3.29 | 3.26 | 0.03 |
| Nov | 3.36 | 3.44 | -0.08 |
| Dec | 3.41 | 3.58 | -0.17 |
45.52 | 45.88 | -0.36 |