| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.73 | 0.04 |
| Feb | 0.81 | 0.86 | -0.05 |
| Mar | 1.42 | 1.48 | -0.06 |
| Apr | 2.65 | 2.69 | -0.04 |
| May | 3.83 | 3.69 | 0.14 |
| Jun | 4.46 | 4.40 | 0.06 |
| Jul | 4.38 | 4.55 | -0.17 |
| Aug | 4.00 | 4.08 | -0.08 |
| Sep | 3.28 | 3.29 | -0.01 |
| Oct | 2.96 | 3.01 | -0.05 |
| Nov | 1.62 | 1.55 | 0.07 |
| Dec | 1.10 | 1.16 | -0.06 |
31.28 | 31.49 | -0.21 |