| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.31 | 4.55 | -0.24 |
| Feb | 3.94 | 4.09 | -0.15 |
| Mar | 4.68 | 4.68 | 0.00 |
| Apr | 3.75 | 3.89 | -0.14 |
| May | 4.12 | 3.96 | 0.16 |
| Jun | 4.18 | 4.22 | -0.04 |
| Jul | 4.12 | 4.11 | 0.01 |
| Aug | 4.56 | 4.53 | 0.03 |
| Sep | 3.62 | 3.75 | -0.13 |
| Oct | 3.38 | 3.43 | -0.05 |
| Nov | 3.62 | 3.90 | -0.28 |
| Dec | 4.56 | 5.01 | -0.45 |
48.84 | 50.12 | -1.28 |