| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.39 | 0.03 |
| Feb | 0.37 | 0.33 | 0.04 |
| Mar | 0.52 | 0.55 | -0.03 |
| Apr | 0.59 | 0.66 | -0.07 |
| May | 1.00 | 1.19 | -0.19 |
| Jun | 1.12 | 1.33 | -0.21 |
| Jul | 2.22 | 2.26 | -0.04 |
| Aug | 1.78 | 2.02 | -0.24 |
| Sep | 1.75 | 1.85 | -0.10 |
| Oct | 1.50 | 1.29 | 0.21 |
| Nov | 0.45 | 0.45 | 0.00 |
| Dec | 0.58 | 0.53 | 0.05 |
12.30 | 12.85 | -0.55 |