| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.78 | 3.96 | -0.18 |
| Feb | 3.64 | 3.69 | -0.05 |
| Mar | 3.91 | 4.03 | -0.12 |
| Apr | 3.19 | 3.21 | -0.02 |
| May | 3.41 | 3.35 | 0.06 |
| Jun | 5.26 | 5.17 | 0.09 |
| Jul | 5.08 | 5.06 | 0.02 |
| Aug | 4.98 | 5.13 | -0.15 |
| Sep | 4.20 | 4.27 | -0.07 |
| Oct | 3.19 | 3.25 | -0.06 |
| Nov | 2.92 | 2.98 | -0.06 |
| Dec | 3.77 | 3.86 | -0.09 |
47.33 | 47.96 | -0.63 |