| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.43 | 0.45 | -0.02 |
| Feb | 0.62 | 0.61 | 0.01 |
| Mar | 1.21 | 1.23 | -0.02 |
| Apr | 2.14 | 2.25 | -0.11 |
| May | 3.48 | 3.66 | -0.18 |
| Jun | 3.11 | 3.13 | -0.02 |
| Jul | 3.61 | 3.84 | -0.23 |
| Aug | 3.12 | 3.13 | -0.01 |
| Sep | 1.82 | 1.82 | 0.00 |
| Oct | 1.85 | 1.85 | 0.00 |
| Nov | 0.86 | 0.86 | 0.00 |
| Dec | 0.65 | 0.69 | -0.04 |
22.90 | 23.52 | -0.62 |