| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.82 | 4.07 | -0.25 |
| Feb | 3.41 | 3.61 | -0.20 |
| Mar | 4.86 | 5.31 | -0.45 |
| Apr | 4.32 | 4.67 | -0.35 |
| May | 3.45 | 3.53 | -0.08 |
| Jun | 3.67 | 3.80 | -0.13 |
| Jul | 3.15 | 3.19 | -0.04 |
| Aug | 3.70 | 3.83 | -0.13 |
| Sep | 3.90 | 3.89 | 0.01 |
| Oct | 4.52 | 4.69 | -0.17 |
| Nov | 4.04 | 4.18 | -0.14 |
| Dec | 4.69 | 5.03 | -0.34 |
47.53 | 49.80 | -2.27 |