| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.21 | 2.26 | -0.05 |
| Feb | 2.00 | 2.10 | -0.10 |
| Mar | 2.55 | 2.68 | -0.13 |
| Apr | 3.98 | 3.97 | 0.01 |
| May | 4.43 | 4.43 | 0.00 |
| Jun | 4.50 | 4.62 | -0.12 |
| Jul | 4.26 | 4.20 | 0.06 |
| Aug | 3.27 | 3.13 | 0.14 |
| Sep | 3.18 | 3.18 | 0.00 |
| Oct | 3.26 | 3.28 | -0.02 |
| Nov | 3.11 | 3.14 | -0.03 |
| Dec | 2.29 | 2.38 | -0.09 |
39.04 | 39.37 | -0.33 |