| WMO/ICAO ID | Name | MAE | RMSE | BIAS | maxE | minE | Cases |
|---|---|---|---|---|---|---|---|
| United States | 4.58 | 6.02 | -2.14 | 22.9 | -25.5 | 2295 | |
| Alabama | 6.02 | 6.97 | -4.76 | 7.1 | -16.9 | 68 | |
| Alaska | 6.77 | 8.28 | -3.74 | 7.9 | -20.2 | 23 | |
| Arizona | 2.96 | 3.77 | -2.19 | 5.4 | -11.2 | 46 | |
| California | 2.47 | 3.08 | -1.44 | 6.2 | -7.8 | 161 | |
| Colorado | 5.89 | 7.71 | -2.80 | 13.3 | -21.8 | 115 | |
| Connecticut | 4.13 | 5.00 | -2.57 | 6.9 | -11.0 | 23 | |
| Florida | 3.59 | 4.79 | -2.38 | 10.7 | -14.2 | 137 | |
| Idaho | 3.19 | 3.87 | -2.58 | 4.1 | -9.4 | 23 | |
| Illinois | 4.14 | 5.17 | -3.78 | 4.0 | -13.6 | 46 | |
| Indiana | 4.64 | 6.07 | -4.31 | 1.7 | -17.3 | 23 | |
| Iowa | 3.07 | 4.31 | -0.85 | 16.7 | -8.5 | 46 | |
| Kansas | 4.88 | 6.87 | 0.71 | 22.9 | -12.5 | 23 | |
| Kentucky | 4.92 | 6.52 | -4.59 | 2.8 | -15.4 | 46 | |
| Louisiana | 5.76 | 6.88 | -4.58 | 6.9 | -14.1 | 23 | |
| Maine | 3.53 | 4.34 | -1.83 | 7.2 | -11.8 | 46 | |
| Maryland | 4.92 | 5.78 | -3.30 | 6.5 | -11.6 | 23 | |
| Massachusetts | 3.69 | 4.65 | -1.68 | 8.2 | -10.0 | 23 | |
| Michigan | 4.49 | 5.59 | -3.58 | 4.7 | -17.2 | 46 | |
| Minnesota | 3.92 | 4.84 | -1.57 | 7.2 | -13.0 | 46 | |
| Missouri | 3.75 | 5.15 | -1.63 | 20.0 | -10.7 | 46 | |
| Montana | 4.82 | 6.57 | 1.50 | 22.4 | -11.4 | 68 | |
| Nebraska | 4.38 | 6.20 | 0.08 | 19.9 | -10.6 | 20 | |
| Nevada | 4.12 | 5.15 | -2.61 | 10.1 | -11.2 | 46 | |
| New Hampshire | 6.90 | 8.34 | 4.93 | 17.9 | -11.5 | 23 | |
| New Jersey | 4.35 | 5.52 | -2.66 | 12.4 | -14.0 | 45 | |
| New Mexico | 5.15 | 7.25 | -2.65 | 16.5 | -19.4 | 23 | |
| New York | 4.09 | 5.16 | -2.89 | 8.7 | -13.6 | 91 | |
| North Carolina | 5.70 | 7.06 | -2.67 | 14.5 | -17.9 | 69 | |
| North Dakota | 4.05 | 4.91 | -0.98 | 7.3 | -14.2 | 46 | |
| Ohio | 4.71 | 5.95 | -3.95 | 3.1 | -16.2 | 23 | |
| Oklahoma | 4.85 | 6.47 | -0.25 | 17.2 | -16.3 | 46 | |
| Oregon | 2.90 | 3.57 | -1.19 | 7.7 | -6.2 | 23 | |
| Pennsylvania | 4.93 | 6.16 | -3.49 | 9.5 | -14.3 | 46 | |
| South Carolina | 6.64 | 8.02 | -1.35 | 14.1 | -15.8 | 23 | |
| South Dakota | 5.86 | 7.47 | 3.42 | 20.2 | -9.4 | 23 | |
| Tennessee | 5.44 | 6.79 | -4.45 | 6.5 | -17.9 | 46 | |
| Texas | 5.43 | 7.25 | -2.13 | 20.4 | -25.5 | 211 | |
| US State Georgia | 6.75 | 8.33 | -3.64 | 17.1 | -21.4 | 68 | |
| Utah | 5.34 | 6.80 | -4.32 | 8.2 | -15.7 | 23 | |
| Vermont | 3.97 | 5.41 | -3.34 | 4.1 | -12.6 | 23 | |
| Virginia | 5.29 | 6.45 | -3.14 | 11.1 | -16.7 | 115 | |
| Washington | 2.97 | 3.71 | -0.18 | 6.7 | -9.2 | 69 | |
| Wisconsin | 4.06 | 5.02 | -3.85 | 2.1 | -10.1 | 23 | |
| Wyoming | 4.85 | 6.15 | 1.05 | 15.6 | -11.4 | 69 |