| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.98 | -0.24 |
| Feb | 0.77 | 0.90 | -0.13 |
| Mar | 1.61 | 1.70 | -0.09 |
| Apr | 2.90 | 3.12 | -0.22 |
| May | 4.15 | 4.12 | 0.03 |
| Jun | 4.53 | 4.64 | -0.11 |
| Jul | 4.15 | 4.33 | -0.18 |
| Aug | 4.49 | 4.38 | 0.11 |
| Sep | 3.29 | 3.23 | 0.06 |
| Oct | 2.69 | 2.78 | -0.09 |
| Nov | 1.57 | 1.70 | -0.13 |
| Dec | 1.06 | 1.28 | -0.22 |
31.95 | 33.16 | -1.21 |