| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 4.15 | -0.54 |
| Feb | 3.23 | 3.45 | -0.22 |
| Mar | 3.73 | 3.97 | -0.24 |
| Apr | 3.91 | 4.07 | -0.16 |
| May | 4.07 | 4.06 | 0.01 |
| Jun | 4.24 | 4.30 | -0.06 |
| Jul | 5.02 | 4.85 | 0.17 |
| Aug | 4.10 | 4.11 | -0.01 |
| Sep | 3.69 | 4.18 | -0.49 |
| Oct | 2.98 | 2.84 | 0.14 |
| Nov | 3.22 | 3.58 | -0.36 |
| Dec | 3.64 | 3.83 | -0.19 |
45.44 | 47.39 | -1.95 |