| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.42 | 4.35 | 0.07 |
| Feb | 4.76 | 4.66 | 0.10 |
| Mar | 5.15 | 4.96 | 0.19 |
| Apr | 4.89 | 4.77 | 0.12 |
| May | 4.84 | 4.86 | -0.02 |
| Jun | 4.50 | 4.54 | -0.04 |
| Jul | 4.54 | 4.50 | 0.04 |
| Aug | 3.74 | 3.46 | 0.28 |
| Sep | 3.90 | 3.72 | 0.18 |
| Oct | 3.55 | 3.42 | 0.13 |
| Nov | 3.69 | 3.80 | -0.11 |
| Dec | 5.06 | 5.19 | -0.13 |
53.04 | 52.23 | 0.81 |