| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.16 | 3.26 | -0.10 |
| Feb | 3.17 | 3.29 | -0.12 |
| Mar | 4.16 | 4.36 | -0.20 |
| Apr | 3.76 | 3.87 | -0.11 |
| May | 4.48 | 4.69 | -0.21 |
| Jun | 4.12 | 4.41 | -0.29 |
| Jul | 4.77 | 5.12 | -0.35 |
| Aug | 3.77 | 3.80 | -0.03 |
| Sep | 3.31 | 3.44 | -0.13 |
| Oct | 2.90 | 2.96 | -0.06 |
| Nov | 2.77 | 2.91 | -0.14 |
| Dec | 3.69 | 3.90 | -0.21 |
44.06 | 46.01 | -1.95 |