| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.20 | 2.37 | -0.17 |
| Feb | 1.95 | 2.09 | -0.14 |
| Mar | 2.30 | 2.37 | -0.07 |
| Apr | 3.53 | 3.62 | -0.09 |
| May | 4.37 | 4.15 | 0.22 |
| Jun | 4.34 | 4.36 | -0.02 |
| Jul | 3.98 | 4.19 | -0.21 |
| Aug | 4.25 | 4.26 | -0.01 |
| Sep | 3.38 | 3.40 | -0.02 |
| Oct | 3.53 | 3.69 | -0.16 |
| Nov | 2.65 | 2.78 | -0.13 |
| Dec | 2.18 | 2.27 | -0.09 |
38.66 | 39.55 | -0.89 |