| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.23 | 4.35 | -0.12 |
| Feb | 3.73 | 3.86 | -0.13 |
| Mar | 4.56 | 4.64 | -0.08 |
| Apr | 4.28 | 4.34 | -0.06 |
| May | 3.87 | 4.07 | -0.20 |
| Jun | 4.27 | 4.38 | -0.11 |
| Jul | 4.32 | 4.45 | -0.13 |
| Aug | 4.41 | 4.64 | -0.23 |
| Sep | 3.95 | 4.13 | -0.18 |
| Oct | 3.61 | 3.80 | -0.19 |
| Nov | 3.82 | 4.01 | -0.19 |
| Dec | 4.38 | 4.75 | -0.37 |
49.43 | 51.42 | -1.99 |