| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.65 | -0.05 |
| Feb | 2.92 | 2.85 | 0.07 |
| Mar | 4.04 | 3.92 | 0.12 |
| Apr | 3.45 | 3.65 | -0.20 |
| May | 3.88 | 3.94 | -0.06 |
| Jun | 4.48 | 4.56 | -0.08 |
| Jul | 5.51 | 5.25 | 0.26 |
| Aug | 5.18 | 5.64 | -0.46 |
| Sep | 5.40 | 5.46 | -0.06 |
| Oct | 3.96 | 4.29 | -0.33 |
| Nov | 3.32 | 3.43 | -0.11 |
| Dec | 3.46 | 3.60 | -0.14 |
49.20 | 50.24 | -1.04 |