| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.58 | -0.10 |
| Feb | 2.95 | 2.87 | 0.08 |
| Mar | 4.07 | 4.05 | 0.02 |
| Apr | 3.48 | 3.59 | -0.11 |
| May | 3.42 | 3.52 | -0.10 |
| Jun | 4.37 | 4.51 | -0.14 |
| Jul | 5.00 | 4.91 | 0.09 |
| Aug | 4.68 | 5.06 | -0.38 |
| Sep | 5.02 | 5.48 | -0.46 |
| Oct | 3.33 | 3.41 | -0.08 |
| Nov | 3.19 | 3.18 | 0.01 |
| Dec | 3.31 | 3.39 | -0.08 |
46.30 | 47.55 | -1.25 |