| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.15 | 4.33 | -0.18 |
| Feb | 3.67 | 3.56 | 0.11 |
| Mar | 3.88 | 3.70 | 0.18 |
| Apr | 3.73 | 3.68 | 0.05 |
| May | 4.73 | 4.40 | 0.33 |
| Jun | 4.56 | 4.77 | -0.21 |
| Jul | 2.80 | 2.79 | 0.01 |
| Aug | 3.31 | 3.67 | -0.36 |
| Sep | 3.66 | 3.52 | 0.14 |
| Oct | 4.32 | 4.24 | 0.08 |
| Nov | 4.26 | 3.65 | 0.61 |
| Dec | 4.43 | 4.39 | 0.04 |
47.50 | 46.70 | 0.80 |