| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.70 | -0.29 |
| Feb | 2.95 | 3.06 | -0.11 |
| Mar | 4.22 | 4.23 | -0.01 |
| Apr | 3.87 | 3.89 | -0.02 |
| May | 3.59 | 3.67 | -0.08 |
| Jun | 4.03 | 4.15 | -0.12 |
| Jul | 3.93 | 3.89 | 0.04 |
| Aug | 4.17 | 4.18 | -0.01 |
| Sep | 4.06 | 3.95 | 0.11 |
| Oct | 4.10 | 4.15 | -0.05 |
| Nov | 3.43 | 3.32 | 0.11 |
| Dec | 4.30 | 4.36 | -0.06 |
46.06 | 46.55 | -0.49 |