| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.25 | 2.27 | -0.02 |
| Feb | 1.99 | 2.03 | -0.04 |
| Mar | 2.64 | 2.68 | -0.04 |
| Apr | 4.05 | 3.99 | 0.06 |
| May | 4.44 | 4.39 | 0.05 |
| Jun | 4.60 | 4.60 | 0.00 |
| Jul | 4.22 | 4.12 | 0.10 |
| Aug | 3.23 | 3.11 | 0.12 |
| Sep | 3.13 | 3.11 | 0.02 |
| Oct | 3.29 | 3.25 | 0.04 |
| Nov | 3.19 | 3.14 | 0.05 |
| Dec | 2.30 | 2.39 | -0.09 |
39.33 | 39.08 | 0.25 |