| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.28 | 3.40 | -0.12 |
| Feb | 2.66 | 2.86 | -0.20 |
| Mar | 3.45 | 3.57 | -0.12 |
| Apr | 4.06 | 4.15 | -0.09 |
| May | 4.02 | 4.26 | -0.24 |
| Jun | 4.47 | 4.78 | -0.31 |
| Jul | 4.43 | 4.69 | -0.26 |
| Aug | 4.68 | 4.67 | 0.01 |
| Sep | 4.43 | 4.52 | -0.09 |
| Oct | 4.33 | 4.43 | -0.10 |
| Nov | 3.38 | 3.37 | 0.01 |
| Dec | 3.45 | 3.63 | -0.18 |
46.64 | 48.33 | -1.69 |