| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.47 | 0.47 | 0.00 |
| Feb | 0.66 | 0.64 | 0.02 |
| Mar | 1.22 | 1.28 | -0.06 |
| Apr | 1.84 | 1.83 | 0.01 |
| May | 3.23 | 3.21 | 0.02 |
| Jun | 2.96 | 2.74 | 0.22 |
| Jul | 3.31 | 3.55 | -0.24 |
| Aug | 2.79 | 2.91 | -0.12 |
| Sep | 1.64 | 1.70 | -0.06 |
| Oct | 1.54 | 1.50 | 0.04 |
| Nov | 0.71 | 0.67 | 0.04 |
| Dec | 0.69 | 0.74 | -0.05 |
21.06 | 21.24 | -0.18 |