| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.16 | 3.39 | -0.23 |
| Feb | 2.67 | 3.00 | -0.33 |
| Mar | 3.54 | 3.89 | -0.35 |
| Apr | 3.64 | 3.92 | -0.28 |
| May | 3.50 | 3.61 | -0.11 |
| Jun | 4.15 | 4.46 | -0.31 |
| Jul | 4.04 | 4.09 | -0.05 |
| Aug | 4.12 | 4.22 | -0.10 |
| Sep | 4.17 | 4.35 | -0.18 |
| Oct | 4.46 | 4.66 | -0.20 |
| Nov | 3.35 | 3.62 | -0.27 |
| Dec | 3.88 | 4.26 | -0.38 |
44.68 | 47.47 | -2.79 |