| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.70 | 2.76 | -0.06 |
| Feb | 2.32 | 2.25 | 0.07 |
| Mar | 3.28 | 3.26 | 0.02 |
| Apr | 3.56 | 3.39 | 0.17 |
| May | 3.90 | 3.85 | 0.05 |
| Jun | 3.85 | 3.72 | 0.13 |
| Jul | 3.65 | 3.76 | -0.11 |
| Aug | 3.65 | 3.40 | 0.25 |
| Sep | 3.98 | 3.78 | 0.20 |
| Oct | 3.39 | 3.25 | 0.14 |
| Nov | 2.96 | 2.95 | 0.01 |
| Dec | 3.07 | 3.03 | 0.04 |
40.31 | 39.40 | 0.91 |