| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.42 | 1.45 | -0.03 |
| Feb | 1.37 | 1.38 | -0.01 |
| Mar | 1.20 | 1.23 | -0.03 |
| Apr | 1.70 | 1.54 | 0.16 |
| May | 1.75 | 1.75 | 0.00 |
| Jun | 1.28 | 1.34 | -0.06 |
| Jul | 1.70 | 1.80 | -0.10 |
| Aug | 1.75 | 2.02 | -0.27 |
| Sep | 1.52 | 1.55 | -0.03 |
| Oct | 1.33 | 1.23 | 0.10 |
| Nov | 1.21 | 1.18 | 0.03 |
| Dec | 1.33 | 1.34 | -0.01 |
17.56 | 17.81 | -0.25 |