| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.20 | 2.28 | -0.08 |
| Feb | 1.93 | 2.00 | -0.07 |
| Mar | 2.30 | 2.35 | -0.05 |
| Apr | 3.56 | 3.59 | -0.03 |
| May | 4.31 | 4.27 | 0.04 |
| Jun | 4.38 | 4.42 | -0.04 |
| Jul | 4.25 | 4.20 | 0.05 |
| Aug | 4.21 | 4.39 | -0.18 |
| Sep | 3.42 | 3.50 | -0.08 |
| Oct | 3.54 | 3.58 | -0.04 |
| Nov | 2.71 | 2.66 | 0.05 |
| Dec | 2.17 | 2.20 | -0.03 |
38.98 | 39.44 | -0.46 |