Weather forecast accuracy details for Clayton, Delaware

These are the one- to three-day out accuracy percentages for high temperature, low temperature, icon forecast precipitation (both rain and snow), and text forecast precipitation (both rain and snow). Temperature accuracy is the percentage of forecasts within three degrees. Precipitation accuracy is the percentage of correct forecasts. The forecasts are collected in the evening.

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Weather Forecast Accuracy Data Last Month (August)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   87.30% 84.13% 76.92% 76.92% 81.32%
Foreca   81.82% 78.79% 77.27% 77.27% 78.79%
AerisWeather   81.82% 78.79% 75.76% 75.76% 78.03%
The Weather Channel   83.33% 72.73% 72.73% 72.73% 75.38%
Pirate Weather   84.85% 51.52% 75.76% 71.21% 70.83%
OpenWeather   83.33% 51.52% 72.73% 72.73% 70.08%
NWS Digital Forecast   71.21% 60.61% 74.24% 74.24% 70.08%
Weatherbit   71.21% 65.15% 69.70% 69.70% 68.94%
Open-Meteo   66.67% 60.61% 74.24% 74.24% 68.94%
Wetter.com   62.12% 51.52% 72.73% 72.73% 64.77%
World Weather Online   56.06% 53.03% 72.73% 72.73% 63.64%
Persistence   38.46% 34.21% 61.54% 61.54% 48.94%

Weather Forecast Accuracy Data Last Year (2024)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   83.92% 71.63% 86.77% 87.15% 82.37%
Foreca   83.24% 64.68% 88.20% 88.20% 81.08%
The Weather Channel   86.17% 63.35% 87.06% 87.06% 80.91%
AerisWeather   80.87% 63.35% 85.93% 85.93% 79.02%
Weatherbit   82.34% 57.34% 82.87% 82.96% 76.38%
NWS Digital Forecast   78.61% 56.81% 77.04% 77.04% 72.37%
Pirate Weather   75.66% 33.81% 86.59% 86.59% 70.66%
Open-Meteo   74.62% 49.43% 79.04% 79.04% 70.53%
Wetter.com   62.31% 48.01% 76.20% 75.35% 65.47%
OpenWeather   59.75% 40.44% 78.75% 78.75% 64.42%
World Weather Online   60.61% 44.79% 75.07% 75.07% 63.88%
Persistence   37.06% 28.64% 62.82% 62.82% 47.84%

If this data feeds your inner weather geek, you'll probably be interested in the amazing amount of weather data available from ForecastWatch. Likewise, if you're looking to assess your own forecasting accuracy or would like to make more informed decisions about a weather provider you're considering or already use, we can provide data to help you.

The data here is calculated from forecasts and observations collected and analyzed by ForecastWatch. If you would like more information about the methods, scientific approach, and the quality controls employed to ensure the data and analyses are of the highest quality, please read this overview.

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