| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.32 | 0.13 |
| Feb | 3.09 | 2.99 | 0.10 |
| Mar | 4.15 | 4.09 | 0.06 |
| Apr | 3.29 | 3.35 | -0.06 |
| May | 3.45 | 3.44 | 0.01 |
| Jun | 3.73 | 3.55 | 0.18 |
| Jul | 4.29 | 4.25 | 0.04 |
| Aug | 4.30 | 4.57 | -0.27 |
| Sep | 4.25 | 4.37 | -0.12 |
| Oct | 3.91 | 4.15 | -0.24 |
| Nov | 3.13 | 3.03 | 0.10 |
| Dec | 3.68 | 3.89 | -0.21 |
44.72 | 45.00 | -0.28 |