| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.44 | -0.05 |
| Feb | 3.26 | 3.22 | 0.04 |
| Mar | 4.11 | 4.16 | -0.05 |
| Apr | 4.19 | 4.02 | 0.17 |
| May | 3.80 | 3.65 | 0.15 |
| Jun | 4.18 | 4.21 | -0.03 |
| Jul | 3.86 | 3.81 | 0.05 |
| Aug | 3.87 | 3.90 | -0.03 |
| Sep | 4.16 | 3.96 | 0.20 |
| Oct | 4.98 | 4.87 | 0.11 |
| Nov | 3.86 | 3.73 | 0.13 |
| Dec | 4.26 | 4.44 | -0.18 |
47.92 | 47.41 | 0.51 |