| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.96 | 4.02 | -0.06 |
| Feb | 3.46 | 3.55 | -0.09 |
| Mar | 4.07 | 4.16 | -0.09 |
| Apr | 4.40 | 4.32 | 0.08 |
| May | 4.26 | 4.42 | -0.16 |
| Jun | 4.82 | 4.89 | -0.07 |
| Jul | 4.58 | 4.61 | -0.03 |
| Aug | 4.46 | 4.53 | -0.07 |
| Sep | 4.36 | 4.51 | -0.15 |
| Oct | 5.29 | 5.45 | -0.16 |
| Nov | 4.05 | 4.17 | -0.12 |
| Dec | 4.69 | 4.97 | -0.28 |
52.40 | 53.60 | -1.20 |