| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.79 | 4.65 | 0.14 |
| Feb | 4.68 | 4.54 | 0.14 |
| Mar | 4.88 | 4.82 | 0.06 |
| Apr | 3.97 | 4.02 | -0.05 |
| May | 4.09 | 3.80 | 0.29 |
| Jun | 4.49 | 4.57 | -0.08 |
| Jul | 4.15 | 4.06 | 0.09 |
| Aug | 4.88 | 4.56 | 0.32 |
| Sep | 4.05 | 4.01 | 0.04 |
| Oct | 3.70 | 3.64 | 0.06 |
| Nov | 4.05 | 3.95 | 0.10 |
| Dec | 4.65 | 4.56 | 0.09 |
52.38 | 51.18 | 1.20 |