| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.68 | -0.16 |
| Feb | 2.88 | 3.04 | -0.16 |
| Mar | 3.46 | 3.66 | -0.20 |
| Apr | 3.87 | 4.11 | -0.24 |
| May | 3.86 | 4.06 | -0.20 |
| Jun | 4.52 | 4.61 | -0.09 |
| Jul | 4.29 | 4.31 | -0.02 |
| Aug | 4.14 | 4.30 | -0.16 |
| Sep | 3.78 | 3.84 | -0.06 |
| Oct | 4.31 | 4.53 | -0.22 |
| Nov | 3.45 | 3.63 | -0.18 |
| Dec | 3.86 | 4.33 | -0.47 |
45.94 | 48.10 | -2.16 |