| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.66 | -0.23 |
| Feb | 3.20 | 3.45 | -0.25 |
| Mar | 4.02 | 4.18 | -0.16 |
| Apr | 4.19 | 4.32 | -0.13 |
| May | 3.61 | 3.62 | -0.01 |
| Jun | 4.31 | 4.48 | -0.17 |
| Jul | 3.40 | 3.34 | 0.06 |
| Aug | 3.27 | 3.23 | 0.04 |
| Sep | 3.96 | 3.90 | 0.06 |
| Oct | 5.15 | 5.26 | -0.11 |
| Nov | 4.40 | 4.48 | -0.08 |
| Dec | 4.28 | 4.60 | -0.32 |
47.22 | 48.52 | -1.30 |