| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.40 | 2.61 | -0.21 |
| Feb | 2.40 | 2.49 | -0.09 |
| Mar | 3.71 | 3.98 | -0.27 |
| Apr | 4.72 | 4.67 | 0.05 |
| May | 5.55 | 5.66 | -0.11 |
| Jun | 4.50 | 4.72 | -0.22 |
| Jul | 3.98 | 4.08 | -0.10 |
| Aug | 3.43 | 3.32 | 0.11 |
| Sep | 4.24 | 4.53 | -0.29 |
| Oct | 3.51 | 3.54 | -0.03 |
| Nov | 3.53 | 3.77 | -0.24 |
| Dec | 2.66 | 2.85 | -0.19 |
44.63 | 46.22 | -1.59 |