| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.92 | 4.26 | -0.34 |
| Feb | 3.63 | 3.83 | -0.20 |
| Mar | 4.02 | 4.35 | -0.33 |
| Apr | 3.17 | 3.25 | -0.08 |
| May | 3.31 | 3.31 | 0.00 |
| Jun | 5.24 | 5.24 | 0.00 |
| Jul | 4.71 | 4.90 | -0.19 |
| Aug | 4.86 | 5.17 | -0.31 |
| Sep | 4.10 | 4.32 | -0.22 |
| Oct | 3.27 | 3.26 | 0.01 |
| Nov | 3.03 | 3.16 | -0.13 |
| Dec | 3.99 | 4.01 | -0.02 |
47.25 | 49.06 | -1.81 |