| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.19 | 4.30 | -0.11 |
| Feb | 3.80 | 3.88 | -0.08 |
| Mar | 4.61 | 4.62 | -0.01 |
| Apr | 3.82 | 3.88 | -0.06 |
| May | 3.90 | 3.80 | 0.10 |
| Jun | 4.31 | 4.11 | 0.20 |
| Jul | 3.94 | 4.08 | -0.14 |
| Aug | 4.41 | 4.56 | -0.15 |
| Sep | 3.78 | 3.46 | 0.32 |
| Oct | 3.28 | 3.43 | -0.15 |
| Nov | 3.62 | 3.84 | -0.22 |
| Dec | 4.36 | 4.74 | -0.38 |
48.02 | 48.70 | -0.68 |