| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 7.34 | 7.12 | 0.22 |
| Feb | 5.56 | 5.21 | 0.35 |
| Mar | 5.65 | 5.54 | 0.11 |
| Apr | 4.34 | 4.19 | 0.15 |
| May | 2.87 | 3.05 | -0.18 |
| Jun | 1.50 | 1.42 | 0.08 |
| Jul | 0.38 | 0.35 | 0.03 |
| Aug | 0.45 | 0.46 | -0.01 |
| Sep | 1.44 | 1.39 | 0.05 |
| Oct | 3.82 | 3.51 | 0.31 |
| Nov | 7.22 | 7.08 | 0.14 |
| Dec | 9.01 | 8.84 | 0.17 |
49.58 | 48.16 | 1.42 |