| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.87 | 3.05 | -0.18 |
| Feb | 2.58 | 2.68 | -0.10 |
| Mar | 3.77 | 3.85 | -0.08 |
| Apr | 3.33 | 3.39 | -0.06 |
| May | 4.18 | 4.38 | -0.20 |
| Jun | 4.27 | 4.48 | -0.21 |
| Jul | 4.46 | 4.52 | -0.06 |
| Aug | 3.83 | 3.86 | -0.03 |
| Sep | 4.30 | 4.32 | -0.02 |
| Oct | 3.81 | 3.96 | -0.15 |
| Nov | 3.05 | 3.14 | -0.09 |
| Dec | 3.66 | 3.71 | -0.05 |
44.11 | 45.34 | -1.23 |