| 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 | 4.01 | 0.18 |
| May | 3.80 | 3.63 | 0.17 |
| Jun | 4.18 | 4.21 | -0.03 |
| Jul | 3.86 | 3.81 | 0.05 |
| Aug | 3.87 | 3.89 | -0.02 |
| Sep | 4.16 | 3.94 | 0.22 |
| Oct | 4.98 | 4.86 | 0.12 |
| Nov | 3.86 | 3.72 | 0.14 |
| Dec | 4.26 | 4.43 | -0.17 |
47.92 | 47.32 | 0.60 |