| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.89 | 4.99 | -0.10 |
| Feb | 4.08 | 4.26 | -0.18 |
| Mar | 4.35 | 4.45 | -0.10 |
| Apr | 4.13 | 4.35 | -0.22 |
| May | 4.91 | 4.69 | 0.22 |
| Jun | 4.85 | 5.18 | -0.33 |
| Jul | 4.22 | 3.84 | 0.38 |
| Aug | 4.34 | 4.59 | -0.25 |
| Sep | 4.20 | 4.54 | -0.34 |
| Oct | 5.36 | 5.10 | 0.26 |
| Nov | 4.75 | 4.80 | -0.05 |
| Dec | 5.15 | 5.38 | -0.23 |
55.23 | 56.17 | -0.94 |