| WMO/ICAO ID | Name | MAE | RMSE | BIAS | maxE | minE | Cases |
|---|---|---|---|---|---|---|---|
| United States | 4.59 | 5.90 | -1.70 | 21.3 | -23.9 | 2094 | |
| Alabama | 5.36 | 6.86 | -3.71 | 10.1 | -16.3 | 61 | |
| Alaska | 5.85 | 6.82 | -3.38 | 9.4 | -16.1 | 21 | |
| Arizona | 1.71 | 2.43 | -0.58 | 3.8 | -6.9 | 42 | |
| California | 2.63 | 3.22 | -1.68 | 4.9 | -8.5 | 147 | |
| Colorado | 5.41 | 7.27 | -1.70 | 17.4 | -23.9 | 105 | |
| Connecticut | 5.57 | 7.09 | -4.49 | 4.4 | -17.8 | 21 | |
| Florida | 3.74 | 5.08 | -2.67 | 13.1 | -13.2 | 119 | |
| Idaho | 3.45 | 4.04 | -3.43 | 0.3 | -7.7 | 21 | |
| Illinois | 4.73 | 5.55 | -3.41 | 6.3 | -11.0 | 42 | |
| Indiana | 4.46 | 5.21 | -2.28 | 8.7 | -9.9 | 21 | |
| Iowa | 3.56 | 4.13 | -0.06 | 9.8 | -8.7 | 42 | |
| Kansas | 5.39 | 6.82 | 3.69 | 14.0 | -5.5 | 21 | |
| Kentucky | 4.80 | 6.27 | -3.54 | 6.7 | -20.1 | 42 | |
| Louisiana | 4.41 | 5.69 | -0.66 | 15.0 | -10.6 | 21 | |
| Maine | 4.45 | 5.48 | -2.71 | 7.4 | -12.6 | 42 | |
| Maryland | 4.37 | 5.34 | -2.34 | 6.4 | -14.6 | 21 | |
| Massachusetts | 4.58 | 5.81 | -3.51 | 5.9 | -13.6 | 21 | |
| Michigan | 4.08 | 5.27 | -2.00 | 8.4 | -13.8 | 42 | |
| Minnesota | 3.35 | 4.12 | -1.42 | 7.6 | -8.6 | 42 | |
| Missouri | 4.04 | 5.09 | 0.02 | 11.0 | -11.2 | 42 | |
| Montana | 6.04 | 7.63 | -0.60 | 20.7 | -14.4 | 63 | |
| Nebraska | 5.22 | 6.35 | 2.62 | 14.2 | -7.6 | 19 | |
| Nevada | 4.50 | 5.18 | -4.18 | 2.8 | -10.7 | 42 | |
| New Hampshire | 6.31 | 7.55 | 1.37 | 14.4 | -14.1 | 21 | |
| New Jersey | 4.63 | 5.70 | -3.41 | 5.3 | -14.8 | 42 | |
| New Mexico | 4.61 | 6.35 | -2.37 | 13.1 | -17.5 | 21 | |
| New York | 5.01 | 6.22 | -3.83 | 7.6 | -15.7 | 84 | |
| North Carolina | 5.69 | 7.17 | -3.89 | 11.6 | -19.4 | 63 | |
| North Dakota | 4.41 | 5.10 | -0.78 | 8.5 | -9.4 | 42 | |
| Ohio | 4.76 | 5.72 | -2.67 | 9.1 | -10.8 | 21 | |
| Oklahoma | 4.83 | 6.15 | 1.49 | 13.2 | -13.4 | 42 | |
| Oregon | 2.66 | 3.34 | -1.98 | 4.1 | -7.3 | 21 | |
| Pennsylvania | 5.29 | 6.57 | -4.03 | 5.4 | -15.3 | 42 | |
| South Carolina | 5.36 | 7.07 | -2.22 | 12.1 | -19.3 | 21 | |
| South Dakota | 6.36 | 7.50 | 4.43 | 17.2 | -4.9 | 21 | |
| Tennessee | 4.08 | 5.11 | -1.32 | 9.5 | -11.6 | 42 | |
| Texas | 5.22 | 6.63 | 1.27 | 21.3 | -15.4 | 195 | |
| US State Georgia | 5.87 | 7.21 | -3.73 | 9.5 | -14.5 | 62 | |
| Utah | 4.99 | 5.87 | -4.99 | -0.5 | -11.7 | 21 | |
| Vermont | 5.14 | 6.13 | -4.04 | 4.9 | -11.9 | 21 | |
| Virginia | 4.97 | 6.13 | -3.22 | 12.7 | -15.5 | 105 | |
| Washington | 2.61 | 3.10 | -0.79 | 6.2 | -6.8 | 63 | |
| Wisconsin | 3.62 | 4.17 | -2.21 | 5.5 | -7.7 | 21 | |
| Wyoming | 6.16 | 7.27 | 1.30 | 15.8 | -12.8 | 63 |