Tracking Xweather forecasts vs actuals for 50 US state capitals
Mean absolute error (°F) using the earliest stored forecast for each hour vs the observed temperature. Lower is better. Ranked best → worst.
| Capital | Samples | MAE °F | Bias °F | Avg lead (h) |
|---|---|---|---|---|
| Columbus OH | 187 | 1.44 | -0.39 | 48.0 |
| Honolulu HI | 187 | 1.47 | 0.01 | 48.0 |
| Little Rock AR | 187 | 1.79 | -0.20 | 48.0 |
| Austin TX | 187 | 1.80 | 0.88 | 48.0 |
| Indianapolis IN | 187 | 2.04 | -1.57 | 48.0 |
| Sacramento CA | 187 | 2.05 | 0.54 | 48.0 |
| Boston MA | 187 | 2.06 | -1.13 | 48.0 |
| Des Moines IA | 187 | 2.16 | -1.36 | 48.0 |
| Frankfort KY | 187 | 2.16 | -1.70 | 48.0 |
| Jackson MS | 187 | 2.17 | 0.75 | 48.0 |
| Saint Paul MN | 187 | 2.18 | -0.28 | 48.0 |
| Juneau AK | 187 | 2.22 | 1.01 | 48.0 |
| Boise ID | 187 | 2.22 | 0.35 | 48.0 |
| Jefferson City MO | 187 | 2.25 | 1.10 | 48.0 |
| Salem OR | 187 | 2.33 | 1.07 | 48.0 |
| Lansing MI | 187 | 2.34 | -0.04 | 48.0 |
| Trenton NJ | 187 | 2.34 | -0.92 | 48.0 |
| Albany NY | 187 | 2.35 | -0.88 | 48.0 |
| Montgomery AL | 187 | 2.38 | -0.67 | 48.0 |
| Cheyenne WY | 187 | 2.41 | -0.33 | 48.0 |
| Phoenix AZ | 187 | 2.44 | -1.97 | 48.0 |
| Topeka KS | 187 | 2.48 | 0.47 | 48.0 |
| Charleston WV | 187 | 2.51 | 0.90 | 48.0 |
| Richmond VA | 187 | 2.58 | -0.71 | 48.0 |
| Harrisburg PA | 187 | 2.59 | 0.25 | 48.0 |
| Springfield IL | 187 | 2.64 | 1.87 | 48.0 |
| Columbia SC | 187 | 2.64 | -0.52 | 48.0 |
| Providence RI | 187 | 2.69 | -1.16 | 48.0 |
| Raleigh NC | 187 | 2.83 | 1.14 | 48.0 |
| Oklahoma City OK | 187 | 2.91 | 0.93 | 48.0 |
| Madison WI | 187 | 2.91 | 0.23 | 48.0 |
| Pierre SD | 187 | 2.93 | 1.01 | 48.0 |
| Dover DE | 187 | 2.96 | -1.03 | 48.0 |
| Nashville TN | 187 | 3.03 | 1.50 | 48.0 |
| Salt Lake City UT | 187 | 3.06 | -1.24 | 48.0 |
| Augusta ME | 187 | 3.11 | -2.82 | 48.0 |
| Annapolis MD | 187 | 3.12 | -2.50 | 48.0 |
| Montpelier VT | 187 | 3.17 | 1.31 | 48.0 |
| Lincoln NE | 187 | 3.18 | -0.07 | 48.0 |
| Helena MT | 187 | 3.29 | 1.22 | 48.0 |
| Hartford CT | 187 | 3.31 | -1.13 | 48.0 |
| Tallahassee FL | 187 | 3.43 | 0.73 | 48.0 |
| Santa Fe NM | 187 | 3.43 | -1.40 | 48.0 |
| Denver CO | 187 | 3.44 | 0.16 | 48.0 |
| Baton Rouge LA | 187 | 3.45 | 2.29 | 48.0 |
| Atlanta GA | 187 | 3.48 | 2.08 | 48.0 |
| Carson City NV | 187 | 3.68 | -0.89 | 48.0 |
| Concord NH | 187 | 3.74 | -0.66 | 48.0 |
| Olympia WA | 187 | 3.88 | 2.60 | 48.0 |
| Bismarck ND | 187 | 4.01 | 1.92 | 48.0 |
Each row pairs an observation with the earliest forecast we had for that hour.
| When (local) | City | Forecast | Actual | Error | Lead (h) |
|---|---|---|---|---|---|
| 2026-10-25 13:00 CDT | Montgomery AL | 71.0°F | 72.0°F | -1.0° | 48.0 |
| 2026-10-25 10:00 AKDT | Juneau AK | 38.0°F | 29.0°F | +9.0° | 48.0 |
| 2026-10-25 11:00 MST | Phoenix AZ | 74.0°F | 72.0°F | +2.0° | 48.0 |
| 2026-10-25 13:00 CDT | Little Rock AR | 76.0°F | 76.0°F | +0.0° | 48.0 |
| 2026-10-25 11:00 PDT | Sacramento CA | 60.0°F | 63.0°F | -3.0° | 48.0 |
| 2026-10-25 12:00 MDT | Denver CO | 54.0°F | 47.0°F | +7.0° | 48.0 |
| 2026-10-25 14:00 EDT | Hartford CT | 63.0°F | 63.0°F | +0.0° | 48.0 |
| 2026-10-25 14:00 EDT | Dover DE | 63.0°F | 64.0°F | -1.0° | 48.0 |
| 2026-10-25 14:00 EDT | Tallahassee FL | 75.0°F | 76.0°F | -1.0° | 48.0 |
| 2026-10-25 14:00 EDT | Atlanta GA | 67.0°F | 68.0°F | -1.0° | 48.0 |
| 2026-10-25 08:00 HST | Honolulu HI | 75.0°F | 77.0°F | -2.0° | 48.0 |
| 2026-10-25 12:00 MDT | Boise ID | 56.0°F | 54.0°F | +2.0° | 48.0 |
| 2026-10-25 13:00 CDT | Springfield IL | 75.0°F | 73.0°F | +2.0° | 48.0 |
| 2026-10-25 14:00 EDT | Indianapolis IN | 72.0°F | 71.0°F | +1.0° | 48.0 |
| 2026-10-25 13:00 CDT | Des Moines IA | 70.0°F | 66.0°F | +4.0° | 48.0 |
| 2026-10-25 13:00 CDT | Topeka KS | 76.0°F | 76.0°F | +0.0° | 48.0 |
| 2026-10-25 14:00 EDT | Frankfort KY | 73.0°F | 72.0°F | +1.0° | 48.0 |
| 2026-10-25 13:00 CDT | Baton Rouge LA | 79.0°F | 78.0°F | +1.0° | 48.0 |
| 2026-10-25 14:00 EDT | Augusta ME | 61.0°F | 65.0°F | -4.0° | 48.0 |
| 2026-10-25 14:00 EDT | Annapolis MD | 61.0°F | 61.0°F | +0.0° | 48.0 |
| 2026-10-25 14:00 EDT | Boston MA | 62.0°F | 61.0°F | +1.0° | 48.0 |
| 2026-10-25 14:00 EDT | Lansing MI | 68.0°F | 66.0°F | +2.0° | 48.0 |
| 2026-10-25 13:00 CDT | Saint Paul MN | 55.0°F | 55.0°F | +0.0° | 48.0 |
| 2026-10-25 13:00 CDT | Jackson MS | 78.0°F | 75.0°F | +3.0° | 48.0 |
| 2026-10-25 13:00 CDT | Jefferson City MO | 76.0°F | 76.0°F | +0.0° | 48.0 |
| 2026-10-25 12:00 MDT | Helena MT | 36.0°F | 37.0°F | -1.0° | 48.0 |
| 2026-10-25 13:00 CDT | Lincoln NE | 69.0°F | 63.0°F | +6.0° | 48.0 |
| 2026-10-25 11:00 PDT | Carson City NV | 55.0°F | 46.0°F | +9.0° | 48.0 |
| 2026-10-25 14:00 EDT | Concord NH | 64.0°F | 67.0°F | -3.0° | 48.0 |
| 2026-10-25 14:00 EDT | Trenton NJ | 64.0°F | 64.0°F | +0.0° | 48.0 |
| 2026-10-25 12:00 MDT | Santa Fe NM | 53.0°F | 57.0°F | -4.0° | 48.0 |
| 2026-10-25 14:00 EDT | Albany NY | 61.0°F | 60.0°F | +1.0° | 48.0 |
| 2026-10-25 14:00 EDT | Raleigh NC | 68.0°F | 68.0°F | +0.0° | 48.0 |
| 2026-10-25 13:00 CDT | Bismarck ND | 47.0°F | 43.0°F | +4.0° | 48.0 |
| 2026-10-25 14:00 EDT | Columbus OH | 68.0°F | 66.0°F | +2.0° | 48.0 |
| 2026-10-25 13:00 CDT | Oklahoma City OK | 76.0°F | 77.0°F | -1.0° | 48.0 |
| 2026-10-25 11:00 PDT | Salem OR | 51.0°F | 50.0°F | +1.0° | 48.0 |
| 2026-10-25 14:00 EDT | Harrisburg PA | 62.0°F | 60.0°F | +2.0° | 48.0 |
| 2026-10-25 14:00 EDT | Providence RI | 63.0°F | 65.0°F | -2.0° | 48.0 |
| 2026-10-25 14:00 EDT | Columbia SC | 70.0°F | 72.0°F | -2.0° | 48.0 |