| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.46 | 0.43 | 0.03 |
| Feb | 0.63 | 0.66 | -0.03 |
| Mar | 1.17 | 1.27 | -0.10 |
| Apr | 1.85 | 1.99 | -0.14 |
| May | 3.36 | 3.58 | -0.22 |
| Jun | 2.91 | 2.91 | 0.00 |
| Jul | 3.38 | 3.58 | -0.20 |
| Aug | 2.92 | 3.07 | -0.15 |
| Sep | 1.72 | 1.79 | -0.07 |
| Oct | 1.63 | 1.64 | -0.01 |
| Nov | 0.73 | 0.73 | 0.00 |
| Dec | 0.65 | 0.66 | -0.01 |
21.41 | 22.31 | -0.90 |