| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.01 | 4.04 | -0.03 |
| Feb | 3.79 | 3.80 | -0.01 |
| Mar | 4.42 | 4.43 | -0.01 |
| Apr | 3.17 | 3.28 | -0.11 |
| May | 3.38 | 3.30 | 0.08 |
| Jun | 4.17 | 3.97 | 0.20 |
| Jul | 3.74 | 3.59 | 0.15 |
| Aug | 3.94 | 3.92 | 0.02 |
| Sep | 3.35 | 3.54 | -0.19 |
| Oct | 3.12 | 3.15 | -0.03 |
| Nov | 3.49 | 3.61 | -0.12 |
| Dec | 4.43 | 4.41 | 0.02 |
45.01 | 45.04 | -0.03 |