| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.38 | -0.03 |
| Feb | 3.21 | 3.24 | -0.03 |
| Mar | 4.51 | 4.40 | 0.11 |
| Apr | 5.49 | 5.30 | 0.19 |
| May | 5.12 | 5.10 | 0.02 |
| Jun | 4.45 | 4.51 | -0.06 |
| Jul | 4.08 | 3.96 | 0.12 |
| Aug | 3.16 | 3.10 | 0.06 |
| Sep | 3.34 | 3.22 | 0.12 |
| Oct | 3.63 | 3.60 | 0.03 |
| Nov | 4.22 | 4.24 | -0.02 |
| Dec | 3.63 | 3.73 | -0.10 |
48.19 | 47.78 | 0.41 |