| WMO/ICAO ID | Name | MAE | RMSE | BIAS | maxE | minE | Cases |
|---|---|---|---|---|---|---|---|
| United States | 4.37 | 5.72 | -2.05 | 20.6 | -22.4 | 2195 | |
| Alabama | 5.74 | 7.12 | -4.41 | 9.5 | -17.1 | 64 | |
| Alaska | 6.66 | 8.15 | -3.84 | 8.5 | -22.2 | 22 | |
| Arizona | 1.98 | 2.67 | -0.58 | 6.5 | -7.6 | 44 | |
| California | 2.52 | 3.09 | -1.49 | 6.6 | -8.4 | 154 | |
| Colorado | 5.59 | 7.42 | -2.20 | 14.7 | -22.4 | 110 | |
| Connecticut | 5.13 | 6.47 | -4.12 | 3.2 | -14.8 | 22 | |
| Florida | 2.75 | 3.74 | -1.65 | 9.6 | -11.8 | 125 | |
| Idaho | 3.40 | 4.34 | -2.66 | 3.4 | -11.0 | 22 | |
| Illinois | 5.66 | 6.37 | -4.42 | 8.0 | -13.5 | 44 | |
| Indiana | 4.65 | 6.17 | -4.01 | 3.4 | -15.6 | 22 | |
| Iowa | 3.65 | 5.03 | -1.27 | 14.9 | -11.4 | 44 | |
| Kansas | 4.29 | 5.61 | 2.07 | 16.9 | -7.3 | 22 | |
| Kentucky | 5.46 | 6.96 | -5.17 | 2.4 | -17.5 | 44 | |
| Louisiana | 3.79 | 4.86 | -2.17 | 7.9 | -8.9 | 22 | |
| Maine | 3.98 | 5.17 | -1.97 | 8.6 | -12.1 | 44 | |
| Maryland | 3.80 | 4.61 | -2.61 | 4.9 | -11.6 | 22 | |
| Massachusetts | 4.31 | 5.54 | -2.89 | 6.6 | -14.0 | 22 | |
| Michigan | 3.90 | 5.52 | -3.19 | 7.4 | -19.7 | 44 | |
| Minnesota | 4.05 | 5.32 | -2.37 | 8.0 | -16.7 | 44 | |
| Missouri | 4.14 | 5.47 | -2.05 | 16.9 | -10.4 | 44 | |
| Montana | 4.25 | 6.00 | 0.67 | 20.6 | -10.1 | 66 | |
| Nebraska | 4.58 | 6.15 | 0.93 | 18.2 | -9.8 | 20 | |
| Nevada | 4.40 | 5.28 | -3.65 | 6.5 | -12.4 | 44 | |
| New Hampshire | 6.64 | 7.88 | 1.88 | 15.9 | -14.9 | 22 | |
| New Jersey | 4.53 | 5.48 | -2.96 | 7.0 | -14.1 | 44 | |
| New Mexico | 5.12 | 6.59 | -2.83 | 13.9 | -13.9 | 22 | |
| New York | 4.58 | 5.65 | -3.51 | 6.9 | -14.8 | 88 | |
| North Carolina | 5.70 | 7.13 | -2.90 | 17.1 | -17.0 | 66 | |
| North Dakota | 3.93 | 4.80 | -0.17 | 9.1 | -13.0 | 44 | |
| Ohio | 5.38 | 6.63 | -3.79 | 5.3 | -17.9 | 22 | |
| Oklahoma | 4.58 | 6.06 | -0.71 | 18.2 | -11.1 | 44 | |
| Oregon | 2.90 | 3.69 | -2.14 | 2.9 | -11.3 | 22 | |
| Pennsylvania | 5.51 | 6.91 | -4.27 | 5.1 | -18.2 | 44 | |
| South Carolina | 5.20 | 6.85 | -0.34 | 16.5 | -10.6 | 22 | |
| South Dakota | 4.64 | 5.95 | 3.62 | 15.2 | -5.1 | 22 | |
| Tennessee | 4.69 | 5.55 | -4.27 | 4.1 | -9.8 | 44 | |
| Texas | 4.49 | 5.87 | -1.06 | 20.0 | -18.0 | 205 | |
| US State Georgia | 5.30 | 6.78 | -2.51 | 12.8 | -14.7 | 65 | |
| Utah | 5.10 | 6.71 | -4.22 | 7.0 | -15.8 | 22 | |
| Vermont | 4.36 | 5.77 | -2.99 | 6.1 | -13.0 | 22 | |
| Virginia | 5.00 | 6.09 | -3.41 | 13.0 | -16.6 | 110 | |
| Washington | 2.22 | 2.84 | -0.85 | 4.8 | -8.7 | 66 | |
| Wisconsin | 4.89 | 5.32 | -3.25 | 7.5 | -8.4 | 22 | |
| Wyoming | 5.01 | 6.12 | 1.51 | 16.4 | -11.4 | 66 |