National comparison
How forecast performance varies across the U.S.
Compare typical temperature forecast errors and warm or cool tendencies across cities with available archived ModelSpread accuracy results.
Forecast accuracy map
High-temperature typical miss · Forecast day 1 · All year
Swipe sideways to explore the full map. Select a dot for that city’s complete monthly and lead-time record. Closely spaced cities may overlap; every city is also available below.
Cities on this map
Only cities with a dedicated local accuracy page are included. Listed alphabetically.
How to read the map
Typical miss is the average size of the error, regardless of direction.
Usually warmer or cooler is average signed error. Positive values mean forecasts averaged warmer than observed; negative values mean cooler.
Seasonal values are case-weighted from completed monthly results. High and low forecast-day windows differ by 12 hours. These are retrospective raw NBM results across multiple model eras.