| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.39 | 0.02 |
| Feb | 0.38 | 0.42 | -0.04 |
| Mar | 0.87 | 0.90 | -0.03 |
| Apr | 1.33 | 1.30 | 0.03 |
| May | 1.63 | 1.69 | -0.06 |
| Jun | 1.48 | 1.38 | 0.10 |
| Jul | 2.29 | 2.21 | 0.08 |
| Aug | 1.82 | 1.69 | 0.13 |
| Sep | 0.91 | 0.86 | 0.05 |
| Oct | 1.04 | 1.26 | -0.22 |
| Nov | 0.48 | 0.40 | 0.08 |
| Dec | 0.43 | 0.51 | -0.08 |
13.07 | 13.01 | 0.06 |