| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.70 | -0.29 |
| Feb | 3.31 | 3.49 | -0.18 |
| Mar | 4.29 | 4.65 | -0.36 |
| Apr | 4.08 | 4.27 | -0.19 |
| May | 3.61 | 3.66 | -0.05 |
| Jun | 4.12 | 4.17 | -0.05 |
| Jul | 3.60 | 3.78 | -0.18 |
| Aug | 3.53 | 3.62 | -0.09 |
| Sep | 3.79 | 3.77 | 0.02 |
| Oct | 4.58 | 4.78 | -0.20 |
| Nov | 3.82 | 3.90 | -0.08 |
| Dec | 4.42 | 4.77 | -0.35 |
46.56 | 48.56 | -2.00 |