| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.04 | 5.44 | -0.40 |
| Feb | 5.11 | 5.15 | -0.04 |
| Mar | 5.41 | 5.59 | -0.18 |
| Apr | 4.96 | 5.41 | -0.45 |
| May | 4.35 | 4.75 | -0.40 |
| Jun | 4.77 | 5.16 | -0.39 |
| Jul | 5.00 | 5.56 | -0.56 |
| Aug | 3.70 | 3.97 | -0.27 |
| Sep | 4.45 | 4.77 | -0.32 |
| Oct | 3.38 | 3.44 | -0.06 |
| Nov | 4.77 | 4.80 | -0.03 |
| Dec | 5.77 | 5.87 | -0.10 |
56.71 | 59.91 | -3.20 |