| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.03 | 4.21 | -0.18 |
| Feb | 3.84 | 4.00 | -0.16 |
| Mar | 2.74 | 2.89 | -0.15 |
| Apr | 1.24 | 1.28 | -0.04 |
| May | 0.72 | 0.66 | 0.06 |
| Jun | 0.17 | 0.19 | -0.02 |
| Jul | 0.00 | 0.00 | 0.00 |
| Aug | 0.02 | 0.04 | -0.02 |
| Sep | 0.11 | 0.06 | 0.05 |
| Oct | 0.81 | 0.79 | 0.02 |
| Nov | 1.79 | 1.87 | -0.08 |
| Dec | 3.56 | 3.69 | -0.13 |
19.03 | 19.68 | -0.65 |