| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.52 | 0.53 | -0.01 |
| Feb | 0.73 | 0.69 | 0.04 |
| Mar | 1.33 | 1.34 | -0.01 |
| Apr | 1.90 | 1.96 | -0.06 |
| May | 3.31 | 3.43 | -0.12 |
| Jun | 3.16 | 3.16 | 0.00 |
| Jul | 3.73 | 3.69 | 0.04 |
| Aug | 2.99 | 3.03 | -0.04 |
| Sep | 1.73 | 1.74 | -0.01 |
| Oct | 1.77 | 1.77 | 0.00 |
| Nov | 0.79 | 0.78 | 0.01 |
| Dec | 0.83 | 0.88 | -0.05 |
22.79 | 23.00 | -0.21 |