| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.99 | -0.39 |
| Feb | 3.00 | 3.52 | -0.52 |
| Mar | 4.24 | 4.80 | -0.56 |
| Apr | 4.23 | 4.61 | -0.38 |
| May | 3.66 | 3.87 | -0.21 |
| Jun | 4.01 | 4.18 | -0.17 |
| Jul | 3.34 | 3.64 | -0.30 |
| Aug | 3.81 | 4.27 | -0.46 |
| Sep | 4.18 | 4.53 | -0.35 |
| Oct | 4.69 | 4.80 | -0.11 |
| Nov | 3.88 | 4.08 | -0.20 |
| Dec | 4.38 | 4.90 | -0.52 |
47.02 | 51.19 | -4.17 |