| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.91 | 3.88 | 0.03 |
| Feb | 2.98 | 3.04 | -0.06 |
| Mar | 3.55 | 3.53 | 0.02 |
| Apr | 3.98 | 3.89 | 0.09 |
| May | 5.09 | 5.04 | 0.05 |
| Jun | 5.20 | 5.08 | 0.12 |
| Jul | 4.06 | 3.98 | 0.08 |
| Aug | 4.77 | 4.84 | -0.07 |
| Sep | 4.59 | 4.83 | -0.24 |
| Oct | 5.02 | 4.85 | 0.17 |
| Nov | 4.17 | 4.29 | -0.12 |
| Dec | 3.96 | 3.98 | -0.02 |
51.28 | 51.23 | 0.05 |