| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.88 | 4.11 | -0.23 |
| Feb | 3.44 | 3.55 | -0.11 |
| Mar | 4.84 | 5.26 | -0.42 |
| Apr | 4.35 | 4.63 | -0.28 |
| May | 3.47 | 3.46 | 0.01 |
| Jun | 3.78 | 3.86 | -0.08 |
| Jul | 3.22 | 3.25 | -0.03 |
| Aug | 3.75 | 3.83 | -0.08 |
| Sep | 3.96 | 3.95 | 0.01 |
| Oct | 4.61 | 4.66 | -0.05 |
| Nov | 4.12 | 4.22 | -0.10 |
| Dec | 4.75 | 5.00 | -0.25 |
48.17 | 49.78 | -1.61 |