| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.70 | -0.28 |
| Feb | 2.96 | 3.05 | -0.09 |
| Mar | 4.24 | 4.24 | 0.00 |
| Apr | 3.89 | 3.91 | -0.02 |
| May | 3.66 | 3.72 | -0.06 |
| Jun | 4.05 | 4.21 | -0.16 |
| Jul | 4.00 | 3.97 | 0.03 |
| Aug | 4.15 | 4.26 | -0.11 |
| Sep | 4.05 | 3.96 | 0.09 |
| Oct | 4.10 | 4.15 | -0.05 |
| Nov | 3.46 | 3.33 | 0.13 |
| Dec | 4.31 | 4.36 | -0.05 |
46.29 | 46.86 | -0.57 |