| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.46 | 0.07 |
| Feb | 3.27 | 3.16 | 0.11 |
| Mar | 3.51 | 3.47 | 0.04 |
| Apr | 3.15 | 3.21 | -0.06 |
| May | 3.38 | 3.31 | 0.07 |
| Jun | 6.07 | 6.19 | -0.12 |
| Jul | 5.57 | 5.73 | -0.16 |
| Aug | 6.09 | 6.44 | -0.35 |
| Sep | 4.77 | 4.60 | 0.17 |
| Oct | 3.55 | 4.15 | -0.60 |
| Nov | 2.28 | 2.45 | -0.17 |
| Dec | 3.17 | 3.29 | -0.12 |
48.34 | 49.46 | -1.12 |