| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.32 | 4.50 | -0.18 |
| Feb | 3.96 | 4.19 | -0.23 |
| Mar | 4.64 | 4.70 | -0.06 |
| Apr | 3.69 | 3.93 | -0.24 |
| May | 3.97 | 3.81 | 0.16 |
| Jun | 4.10 | 4.01 | 0.09 |
| Jul | 3.99 | 3.93 | 0.06 |
| Aug | 4.36 | 4.58 | -0.22 |
| Sep | 3.49 | 3.54 | -0.05 |
| Oct | 3.26 | 3.36 | -0.10 |
| Nov | 3.57 | 3.98 | -0.41 |
| Dec | 4.50 | 4.96 | -0.46 |
47.85 | 49.49 | -1.64 |