| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.78 | -0.10 |
| Feb | 3.24 | 3.41 | -0.17 |
| Mar | 4.23 | 4.35 | -0.12 |
| Apr | 4.22 | 4.37 | -0.15 |
| May | 3.66 | 3.59 | 0.07 |
| Jun | 4.29 | 4.20 | 0.09 |
| Jul | 3.99 | 4.02 | -0.03 |
| Aug | 4.36 | 4.28 | 0.08 |
| Sep | 4.19 | 4.20 | -0.01 |
| Oct | 4.87 | 4.88 | -0.01 |
| Nov | 3.82 | 3.77 | 0.05 |
| Dec | 4.46 | 4.65 | -0.19 |
49.01 | 49.50 | -0.49 |