| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.44 | 4.40 | 0.04 |
| Feb | 4.17 | 4.28 | -0.11 |
| Mar | 4.55 | 4.48 | 0.07 |
| Apr | 3.50 | 3.75 | -0.25 |
| May | 2.76 | 2.65 | 0.11 |
| Jun | 4.28 | 4.39 | -0.11 |
| Jul | 5.03 | 4.83 | 0.20 |
| Aug | 4.34 | 4.50 | -0.16 |
| Sep | 3.68 | 3.76 | -0.08 |
| Oct | 2.75 | 2.84 | -0.09 |
| Nov | 3.25 | 3.31 | -0.06 |
| Dec | 4.67 | 4.59 | 0.08 |
47.42 | 47.78 | -0.36 |