| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.08 | 4.08 | 0.00 |
| Feb | 4.35 | 4.36 | -0.01 |
| Mar | 4.84 | 4.87 | -0.03 |
| Apr | 4.85 | 4.89 | -0.04 |
| May | 5.22 | 5.50 | -0.28 |
| Jun | 4.75 | 4.59 | 0.16 |
| Jul | 5.01 | 4.76 | 0.25 |
| Aug | 3.79 | 3.98 | -0.19 |
| Sep | 3.83 | 3.90 | -0.07 |
| Oct | 3.57 | 3.57 | 0.00 |
| Nov | 3.71 | 3.74 | -0.03 |
| Dec | 4.82 | 4.76 | 0.06 |
52.82 | 53.00 | -0.18 |