| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.58 | -0.12 |
| Feb | 2.86 | 2.94 | -0.08 |
| Mar | 4.11 | 4.19 | -0.08 |
| Apr | 3.72 | 3.83 | -0.11 |
| May | 4.08 | 3.99 | 0.09 |
| Jun | 4.36 | 4.48 | -0.12 |
| Jul | 4.97 | 4.99 | -0.02 |
| Aug | 4.48 | 4.49 | -0.01 |
| Sep | 4.22 | 4.29 | -0.07 |
| Oct | 4.21 | 4.18 | 0.03 |
| Nov | 3.29 | 3.37 | -0.08 |
| Dec | 4.28 | 4.37 | -0.09 |
48.04 | 48.70 | -0.66 |