| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.69 | 3.30 | 0.39 |
| Feb | 2.74 | 2.32 | 0.42 |
| Mar | 2.90 | 2.57 | 0.33 |
| Apr | 2.41 | 2.28 | 0.13 |
| May | 2.07 | 1.96 | 0.11 |
| Jun | 1.64 | 1.58 | 0.06 |
| Jul | 0.90 | 0.83 | 0.07 |
| Aug | 1.00 | 0.87 | 0.13 |
| Sep | 1.60 | 1.61 | -0.01 |
| Oct | 3.05 | 2.83 | 0.22 |
| Nov | 4.41 | 4.24 | 0.17 |
| Dec | 3.84 | 3.52 | 0.32 |
30.25 | 27.91 | 2.34 |