| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.73 | 4.13 | -0.40 |
| Feb | 3.30 | 3.65 | -0.35 |
| Mar | 4.80 | 5.37 | -0.57 |
| Apr | 4.29 | 4.73 | -0.44 |
| May | 3.50 | 3.62 | -0.12 |
| Jun | 3.67 | 3.95 | -0.28 |
| Jul | 3.10 | 3.22 | -0.12 |
| Aug | 3.68 | 4.01 | -0.33 |
| Sep | 3.90 | 4.03 | -0.13 |
| Oct | 4.61 | 4.84 | -0.23 |
| Nov | 3.93 | 4.29 | -0.36 |
| Dec | 4.65 | 5.16 | -0.51 |
47.16 | 51.00 | -3.84 |