| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.03 | 3.91 | 0.12 |
| Feb | 3.67 | 3.75 | -0.08 |
| Mar | 4.08 | 3.96 | 0.12 |
| Apr | 3.25 | 3.31 | -0.06 |
| May | 3.31 | 3.09 | 0.22 |
| Jun | 5.28 | 5.38 | -0.10 |
| Jul | 5.05 | 5.06 | -0.01 |
| Aug | 4.99 | 5.09 | -0.10 |
| Sep | 4.16 | 4.16 | 0.00 |
| Oct | 3.13 | 3.09 | 0.04 |
| Nov | 3.03 | 2.92 | 0.11 |
| Dec | 3.91 | 3.88 | 0.03 |
47.89 | 47.60 | 0.29 |