| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.61 | -0.06 |
| Feb | 3.52 | 3.53 | -0.01 |
| Mar | 4.41 | 4.51 | -0.10 |
| Apr | 4.77 | 4.96 | -0.19 |
| May | 4.95 | 5.20 | -0.25 |
| Jun | 4.16 | 4.54 | -0.38 |
| Jul | 4.32 | 4.28 | 0.04 |
| Aug | 2.97 | 2.97 | 0.00 |
| Sep | 3.42 | 3.48 | -0.06 |
| Oct | 3.52 | 3.61 | -0.09 |
| Nov | 3.80 | 3.81 | -0.01 |
| Dec | 4.19 | 4.24 | -0.05 |
47.58 | 48.74 | -1.16 |