| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.26 | 3.25 | 0.01 |
| Feb | 3.20 | 3.23 | -0.03 |
| Mar | 4.12 | 4.03 | 0.09 |
| Apr | 3.73 | 3.79 | -0.06 |
| May | 4.85 | 5.00 | -0.15 |
| Jun | 4.48 | 4.52 | -0.04 |
| Jul | 5.18 | 5.61 | -0.43 |
| Aug | 3.81 | 3.57 | 0.24 |
| Sep | 3.46 | 3.43 | 0.03 |
| Oct | 3.03 | 3.04 | -0.01 |
| Nov | 3.04 | 2.96 | 0.08 |
| Dec | 3.69 | 3.79 | -0.10 |
45.85 | 46.22 | -0.37 |