| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.48 | -0.01 |
| Feb | 0.61 | 0.63 | -0.02 |
| Mar | 1.25 | 1.26 | -0.01 |
| Apr | 1.78 | 1.84 | -0.06 |
| May | 2.98 | 3.18 | -0.20 |
| Jun | 3.09 | 3.05 | 0.04 |
| Jul | 3.30 | 3.31 | -0.01 |
| Aug | 2.92 | 3.03 | -0.11 |
| Sep | 1.70 | 1.68 | 0.02 |
| Oct | 1.53 | 1.63 | -0.10 |
| Nov | 0.67 | 0.69 | -0.02 |
| Dec | 0.66 | 0.77 | -0.11 |
20.96 | 21.55 | -0.59 |