| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.18 | 3.22 | -0.04 |
| Feb | 3.02 | 3.08 | -0.06 |
| Mar | 4.33 | 4.25 | 0.08 |
| Apr | 5.37 | 5.26 | 0.11 |
| May | 5.08 | 5.10 | -0.02 |
| Jun | 4.39 | 4.42 | -0.03 |
| Jul | 3.91 | 3.81 | 0.10 |
| Aug | 3.19 | 3.05 | 0.14 |
| Sep | 3.27 | 3.15 | 0.12 |
| Oct | 3.56 | 3.54 | 0.02 |
| Nov | 4.16 | 4.17 | -0.01 |
| Dec | 3.45 | 3.58 | -0.13 |
46.91 | 46.63 | 0.28 |