| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.01 | 4.19 | -0.18 |
| Feb | 3.81 | 4.07 | -0.26 |
| Mar | 5.08 | 5.31 | -0.23 |
| Apr | 4.46 | 4.73 | -0.27 |
| May | 3.58 | 3.61 | -0.03 |
| Jun | 3.95 | 3.83 | 0.12 |
| Jul | 3.42 | 3.35 | 0.07 |
| Aug | 3.60 | 3.95 | -0.35 |
| Sep | 3.85 | 3.85 | 0.00 |
| Oct | 4.87 | 5.19 | -0.32 |
| Nov | 4.25 | 4.52 | -0.27 |
| Dec | 4.93 | 5.10 | -0.17 |
49.81 | 51.70 | -1.89 |