| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.33 | 3.20 | 0.13 |
| Feb | 2.43 | 2.24 | 0.19 |
| Mar | 2.28 | 2.06 | 0.22 |
| Apr | 1.82 | 1.78 | 0.04 |
| May | 1.43 | 1.39 | 0.04 |
| Jun | 0.74 | 0.72 | 0.02 |
| Jul | 0.33 | 0.30 | 0.03 |
| Aug | 0.31 | 0.33 | -0.02 |
| Sep | 0.45 | 0.44 | 0.01 |
| Oct | 1.46 | 1.34 | 0.12 |
| Nov | 2.93 | 2.77 | 0.16 |
| Dec | 4.20 | 4.13 | 0.07 |
21.71 | 20.70 | 1.01 |