| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.61 | -0.14 |
| Feb | 3.43 | 3.51 | -0.08 |
| Mar | 4.53 | 4.47 | 0.06 |
| Apr | 4.91 | 4.98 | -0.07 |
| May | 5.32 | 5.26 | 0.06 |
| Jun | 4.84 | 4.73 | 0.11 |
| Jul | 4.54 | 4.39 | 0.15 |
| Aug | 3.78 | 3.38 | 0.40 |
| Sep | 3.57 | 3.73 | -0.16 |
| Oct | 3.83 | 3.59 | 0.24 |
| Nov | 3.62 | 3.69 | -0.07 |
| Dec | 4.20 | 4.38 | -0.18 |
50.04 | 49.72 | 0.32 |