| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.70 | 4.86 | -0.16 |
| Feb | 4.37 | 4.51 | -0.14 |
| Mar | 5.05 | 5.12 | -0.07 |
| Apr | 5.04 | 5.12 | -0.08 |
| May | 4.42 | 4.50 | -0.08 |
| Jun | 4.40 | 4.51 | -0.11 |
| Jul | 3.52 | 3.51 | 0.01 |
| Aug | 3.35 | 3.34 | 0.01 |
| Sep | 3.54 | 3.65 | -0.11 |
| Oct | 4.53 | 4.61 | -0.08 |
| Nov | 4.24 | 4.34 | -0.10 |
| Dec | 5.00 | 5.21 | -0.21 |
52.16 | 53.28 | -1.12 |