| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.51 | -0.12 |
| Feb | 2.63 | 2.87 | -0.24 |
| Mar | 3.64 | 3.83 | -0.19 |
| Apr | 3.80 | 3.92 | -0.12 |
| May | 3.90 | 4.07 | -0.17 |
| Jun | 4.40 | 4.60 | -0.20 |
| Jul | 4.80 | 4.90 | -0.10 |
| Aug | 4.72 | 4.75 | -0.03 |
| Sep | 4.49 | 4.66 | -0.17 |
| Oct | 4.36 | 4.58 | -0.22 |
| Nov | 3.20 | 3.40 | -0.20 |
| Dec | 3.99 | 4.21 | -0.22 |
47.32 | 49.30 | -1.98 |