| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.68 | -0.12 |
| Feb | 2.85 | 2.91 | -0.06 |
| Mar | 4.19 | 4.24 | -0.05 |
| Apr | 3.65 | 3.75 | -0.10 |
| May | 3.96 | 3.89 | 0.07 |
| Jun | 4.29 | 4.33 | -0.04 |
| Jul | 4.63 | 4.66 | -0.03 |
| Aug | 4.29 | 4.37 | -0.08 |
| Sep | 3.92 | 4.02 | -0.10 |
| Oct | 4.11 | 4.20 | -0.09 |
| Nov | 3.33 | 3.36 | -0.03 |
| Dec | 4.23 | 4.40 | -0.17 |
47.01 | 47.81 | -0.80 |