| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.05 | 4.24 | -0.19 |
| Feb | 3.47 | 3.61 | -0.14 |
| Mar | 4.65 | 4.96 | -0.31 |
| Apr | 4.51 | 4.65 | -0.14 |
| May | 3.61 | 3.62 | -0.01 |
| Jun | 4.19 | 4.35 | -0.16 |
| Jul | 3.60 | 3.68 | -0.08 |
| Aug | 4.08 | 4.33 | -0.25 |
| Sep | 4.19 | 4.18 | 0.01 |
| Oct | 4.87 | 4.97 | -0.10 |
| Nov | 4.20 | 4.27 | -0.07 |
| Dec | 4.78 | 5.12 | -0.34 |
50.20 | 51.98 | -1.78 |