| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.79 | 0.78 | 0.01 |
| Feb | 0.83 | 0.84 | -0.01 |
| Mar | 1.42 | 1.45 | -0.03 |
| Apr | 2.66 | 2.74 | -0.08 |
| May | 3.53 | 3.66 | -0.13 |
| Jun | 4.14 | 4.21 | -0.07 |
| Jul | 4.21 | 4.29 | -0.08 |
| Aug | 3.84 | 3.83 | 0.01 |
| Sep | 3.52 | 3.55 | -0.03 |
| Oct | 3.07 | 2.96 | 0.11 |
| Nov | 1.62 | 1.63 | -0.01 |
| Dec | 1.15 | 1.25 | -0.10 |
30.78 | 31.19 | -0.41 |