| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.01 | 4.11 | -0.10 |
| Feb | 3.40 | 3.41 | -0.01 |
| Mar | 4.45 | 4.47 | -0.02 |
| Apr | 4.20 | 4.33 | -0.13 |
| May | 3.79 | 4.31 | -0.52 |
| Jun | 4.33 | 4.33 | 0.00 |
| Jul | 4.16 | 4.14 | 0.02 |
| Aug | 4.36 | 4.54 | -0.18 |
| Sep | 3.97 | 3.83 | 0.14 |
| Oct | 3.48 | 3.68 | -0.20 |
| Nov | 3.75 | 3.86 | -0.11 |
| Dec | 4.32 | 4.26 | 0.06 |
48.22 | 49.27 | -1.05 |