| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.87 | 1.95 | -0.08 |
| Feb | 1.76 | 1.89 | -0.13 |
| Mar | 2.22 | 2.25 | -0.03 |
| Apr | 3.74 | 3.69 | 0.05 |
| May | 4.30 | 4.45 | -0.15 |
| Jun | 4.56 | 4.25 | 0.31 |
| Jul | 3.85 | 3.61 | 0.24 |
| Aug | 3.85 | 3.83 | 0.02 |
| Sep | 3.31 | 3.27 | 0.04 |
| Oct | 3.19 | 3.24 | -0.05 |
| Nov | 2.42 | 2.36 | 0.06 |
| Dec | 2.05 | 2.08 | -0.03 |
37.12 | 36.87 | 0.25 |