| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.42 | 0.09 |
| Feb | 3.08 | 2.98 | 0.10 |
| Mar | 4.08 | 3.98 | 0.10 |
| Apr | 3.33 | 3.33 | 0.00 |
| May | 3.61 | 3.66 | -0.05 |
| Jun | 3.96 | 4.00 | -0.04 |
| Jul | 4.62 | 4.59 | 0.03 |
| Aug | 4.41 | 4.60 | -0.19 |
| Sep | 4.24 | 4.30 | -0.06 |
| Oct | 3.97 | 4.37 | -0.40 |
| Nov | 3.10 | 3.00 | 0.10 |
| Dec | 3.68 | 3.87 | -0.19 |
45.59 | 46.10 | -0.51 |