| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.19 | 4.25 | -0.06 |
| Feb | 3.80 | 3.85 | -0.05 |
| Mar | 5.21 | 5.26 | -0.05 |
| Apr | 4.50 | 4.55 | -0.05 |
| May | 3.61 | 3.60 | 0.01 |
| Jun | 3.85 | 3.84 | 0.01 |
| Jul | 3.40 | 3.34 | 0.06 |
| Aug | 3.59 | 3.74 | -0.15 |
| Sep | 4.04 | 3.93 | 0.11 |
| Oct | 4.79 | 4.96 | -0.17 |
| Nov | 4.46 | 4.44 | 0.02 |
| Dec | 4.89 | 5.02 | -0.13 |
50.33 | 50.78 | -0.45 |