| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.53 | 1.56 | -0.03 |
| Feb | 1.13 | 0.98 | 0.15 |
| Mar | 1.13 | 1.05 | 0.08 |
| Apr | 1.14 | 1.25 | -0.11 |
| May | 1.54 | 1.48 | 0.06 |
| Jun | 1.01 | 0.99 | 0.02 |
| Jul | 0.42 | 0.39 | 0.03 |
| Aug | 0.48 | 0.48 | 0.00 |
| Sep | 0.49 | 0.53 | -0.04 |
| Oct | 1.09 | 0.98 | 0.11 |
| Nov | 1.43 | 1.32 | 0.11 |
| Dec | 1.67 | 1.84 | -0.17 |
13.06 | 12.85 | 0.21 |