Weather forecast accuracy details for Knoxville, Alabama

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 (February)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   87.95% 86.75% 86.75% 90.36% 87.95%
The Weather Channel   80.95% 79.76% 89.29% 89.29% 84.82%
Weatherbit   78.21% 74.36% 91.03% 91.03% 83.65%
Foreca/Vaisala   78.57% 83.33% 82.14% 82.14% 81.55%
AccuWeather   75.32% 81.58% 84.42% 83.12% 81.11%
AerisWeather   67.86% 72.62% 77.38% 77.38% 73.81%
NWS Digital Forecast   77.38% 67.86% 71.43% 71.43% 72.02%
Open-Meteo   41.67% 39.29% 88.10% 88.10% 64.29%
OpenWeather   39.29% 36.90% 85.71% 85.71% 61.90%
Pirate Weather   39.29% 26.19% 85.71% 85.71% 59.23%
Wetter   32.14% 30.95% 86.90% 85.71% 58.93%
World Weather Online   42.86% 27.38% 82.14% 82.14% 58.63%
Persistence   25.86% 21.05% 74.14% 74.14% 48.80%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   82.14% 77.56% 85.48% 85.48% 82.67%
Microsoft   80.15% 80.34% 83.86% 83.86% 82.05%
Foreca/Vaisala   78.75% 76.74% 85.84% 85.84% 81.80%
AccuWeather   79.94% 78.92% 79.91% 80.00% 79.69%
AerisWeather   78.21% 73.63% 81.92% 81.92% 78.92%
Weatherbit   70.69% 71.46% 81.12% 81.12% 76.10%
NWS Digital Forecast   76.92% 71.18% 75.51% 75.51% 74.78%
OpenWeather   60.71% 52.84% 78.72% 78.72% 67.75%
Pirate Weather   59.60% 42.24% 83.88% 83.88% 67.40%
World Weather Online   58.55% 54.97% 76.95% 76.95% 66.86%
Wetter   59.71% 51.74% 75.43% 73.06% 64.99%
Persistence   42.56% 35.71% 56.14% 56.14% 47.64%

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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