| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.56 | 1.73 | -0.17 |
| Feb | 1.45 | 1.60 | -0.15 |
| Mar | 1.91 | 2.06 | -0.15 |
| Apr | 3.59 | 3.82 | -0.23 |
| May | 3.65 | 3.86 | -0.21 |
| Jun | 4.17 | 4.22 | -0.05 |
| Jul | 3.43 | 3.62 | -0.19 |
| Aug | 3.61 | 3.82 | -0.21 |
| Sep | 3.06 | 3.11 | -0.05 |
| Oct | 2.72 | 2.86 | -0.14 |
| Nov | 2.08 | 2.14 | -0.06 |
| Dec | 1.79 | 2.03 | -0.24 |
33.02 | 34.87 | -1.85 |