| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.35 | 4.48 | -0.13 |
| Feb | 3.38 | 3.43 | -0.05 |
| Mar | 4.56 | 4.94 | -0.38 |
| Apr | 5.18 | 5.64 | -0.46 |
| May | 5.24 | 5.34 | -0.10 |
| Jun | 5.04 | 5.09 | -0.05 |
| Jul | 5.13 | 4.98 | 0.15 |
| Aug | 5.16 | 5.13 | 0.03 |
| Sep | 5.26 | 5.20 | 0.06 |
| Oct | 4.24 | 4.73 | -0.49 |
| Nov | 4.31 | 4.69 | -0.38 |
| Dec | 4.27 | 4.49 | -0.22 |
56.12 | 58.14 | -2.02 |