| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.26 | 2.30 | -0.04 |
| Feb | 1.94 | 2.05 | -0.11 |
| Mar | 2.37 | 2.37 | 0.00 |
| Apr | 3.72 | 3.71 | 0.01 |
| May | 4.37 | 4.44 | -0.07 |
| Jun | 4.57 | 4.60 | -0.03 |
| Jul | 4.44 | 4.38 | 0.06 |
| Aug | 4.02 | 4.20 | -0.18 |
| Sep | 3.45 | 3.42 | 0.03 |
| Oct | 3.41 | 3.53 | -0.12 |
| Nov | 2.72 | 2.73 | -0.01 |
| Dec | 2.17 | 2.24 | -0.07 |
39.44 | 39.97 | -0.53 |