| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.54 | -0.14 |
| Feb | 3.48 | 3.62 | -0.14 |
| Mar | 4.12 | 4.26 | -0.14 |
| Apr | 4.39 | 4.56 | -0.17 |
| May | 3.75 | 3.66 | 0.09 |
| Jun | 4.37 | 4.26 | 0.11 |
| Jul | 3.49 | 3.49 | 0.00 |
| Aug | 3.45 | 3.51 | -0.06 |
| Sep | 3.88 | 3.70 | 0.18 |
| Oct | 5.00 | 5.33 | -0.33 |
| Nov | 4.36 | 4.28 | 0.08 |
| Dec | 4.53 | 4.75 | -0.22 |
48.22 | 48.96 | -0.74 |