| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.16 | 3.10 | 0.06 |
| Feb | 2.47 | 2.49 | -0.02 |
| Mar | 3.34 | 3.30 | 0.04 |
| Apr | 2.73 | 2.80 | -0.07 |
| May | 4.96 | 4.54 | 0.42 |
| Jun | 3.46 | 3.37 | 0.09 |
| Jul | 1.81 | 1.88 | -0.07 |
| Aug | 2.77 | 2.58 | 0.19 |
| Sep | 3.32 | 3.17 | 0.15 |
| Oct | 4.28 | 4.33 | -0.05 |
| Nov | 3.28 | 3.24 | 0.04 |
| Dec | 3.43 | 3.41 | 0.02 |
39.01 | 38.21 | 0.80 |