| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.64 | 1.62 | 0.02 |
| Feb | 1.23 | 1.12 | 0.11 |
| Mar | 1.75 | 1.71 | 0.04 |
| Apr | 2.88 | 2.84 | 0.04 |
| May | 3.17 | 3.19 | -0.02 |
| Jun | 3.44 | 3.30 | 0.14 |
| Jul | 3.31 | 3.06 | 0.25 |
| Aug | 3.14 | 2.99 | 0.15 |
| Sep | 3.26 | 3.16 | 0.10 |
| Oct | 3.32 | 3.29 | 0.03 |
| Nov | 2.26 | 2.24 | 0.02 |
| Dec | 1.91 | 1.77 | 0.14 |
31.31 | 30.29 | 1.02 |