| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.51 | -0.01 |
| Feb | 2.81 | 2.84 | -0.03 |
| Mar | 4.02 | 4.03 | -0.01 |
| Apr | 3.55 | 3.61 | -0.06 |
| May | 4.25 | 4.19 | 0.06 |
| Jun | 4.37 | 4.55 | -0.18 |
| Jul | 4.09 | 4.35 | -0.26 |
| Aug | 3.81 | 3.84 | -0.03 |
| Sep | 4.51 | 4.75 | -0.24 |
| Oct | 3.43 | 3.47 | -0.04 |
| Nov | 3.33 | 3.32 | 0.01 |
| Dec | 3.59 | 3.56 | 0.03 |
45.26 | 46.02 | -0.76 |