| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.50 | 2.66 | -0.16 |
| Feb | 2.10 | 2.28 | -0.18 |
| Mar | 2.72 | 2.81 | -0.09 |
| Apr | 3.76 | 3.87 | -0.11 |
| May | 3.75 | 3.87 | -0.12 |
| Jun | 4.03 | 4.16 | -0.13 |
| Jul | 3.77 | 4.05 | -0.28 |
| Aug | 3.41 | 3.52 | -0.11 |
| Sep | 3.28 | 3.47 | -0.19 |
| Oct | 3.09 | 3.25 | -0.16 |
| Nov | 2.78 | 2.83 | -0.05 |
| Dec | 2.44 | 2.66 | -0.22 |
37.63 | 39.43 | -1.80 |