| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.79 | 4.83 | -0.04 |
| Feb | 4.69 | 4.71 | -0.02 |
| Mar | 5.10 | 5.28 | -0.18 |
| Apr | 4.24 | 4.39 | -0.15 |
| May | 3.66 | 3.67 | -0.01 |
| Jun | 4.69 | 4.85 | -0.16 |
| Jul | 5.13 | 5.41 | -0.28 |
| Aug | 4.35 | 4.60 | -0.25 |
| Sep | 3.78 | 3.81 | -0.03 |
| Oct | 3.12 | 3.03 | 0.09 |
| Nov | 4.23 | 4.30 | -0.07 |
| Dec | 5.02 | 5.13 | -0.11 |
52.80 | 54.01 | -1.21 |