| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.66 | -0.28 |
| Feb | 2.99 | 3.15 | -0.16 |
| Mar | 3.98 | 4.11 | -0.13 |
| Apr | 4.03 | 4.18 | -0.15 |
| May | 3.82 | 3.96 | -0.14 |
| Jun | 4.31 | 4.43 | -0.12 |
| Jul | 4.34 | 4.46 | -0.12 |
| Aug | 4.27 | 4.50 | -0.23 |
| Sep | 4.49 | 4.38 | 0.11 |
| Oct | 4.65 | 4.84 | -0.19 |
| Nov | 3.80 | 3.91 | -0.11 |
| Dec | 4.11 | 4.49 | -0.38 |
48.17 | 50.07 | -1.90 |