| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.13 | 2.88 | 0.25 |
| Feb | 2.50 | 2.37 | 0.13 |
| Mar | 3.20 | 2.99 | 0.21 |
| Apr | 3.54 | 3.43 | 0.11 |
| May | 4.52 | 4.49 | 0.03 |
| Jun | 4.41 | 4.30 | 0.11 |
| Jul | 2.38 | 2.18 | 0.20 |
| Aug | 3.24 | 2.73 | 0.51 |
| Sep | 3.87 | 3.54 | 0.33 |
| Oct | 4.72 | 4.40 | 0.32 |
| Nov | 3.41 | 3.30 | 0.11 |
| Dec | 3.04 | 3.00 | 0.04 |
41.96 | 39.61 | 2.35 |