Weather forecast accuracy details for Decatur, 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
The Weather Channel   58.33% 62.50% 87.50% 87.50% 73.96%
Weather Underground   58.33% 62.50% 87.50% 87.50% 73.96%
AccuWeather   38.89% 78.95% 88.89% 88.89% 73.90%
NWS Digital Forecast   50.00% 66.67% 87.50% 87.50% 72.92%
Foreca/Vaisala   58.33% 54.17% 87.50% 87.50% 71.88%
World Weather Online   62.50% 58.33% 79.17% 79.17% 69.79%
AerisWeather   33.33% 58.33% 83.33% 83.33% 64.58%
Weather News   25.00% 41.67% 91.67% 91.67% 62.50%
Dark Sky   41.67% 45.83% 79.17% 79.17% 61.46%
Wetter   20.83% 33.33% 87.50% 87.50% 57.29%
OpenWeather   12.50% 33.33% 87.50% 87.50% 55.21%
Weatherbit   23.81% 20.00% 85.71% 85.71% 53.81%
Persistence   11.11% 16.67% 66.67% 66.67% 40.28%

Weather Forecast Accuracy Data Last Year (2022)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   78.55% 77.26% 87.75% 87.75% 82.83%
Foreca/Vaisala   77.81% 73.20% 88.21% 88.21% 81.86%
Weather Underground   78.64% 77.26% 85.17% 85.08% 81.54%
AccuWeather   75.72% 76.75% 80.22% 80.77% 78.37%
AerisWeather   72.38% 70.72% 83.33% 83.33% 77.44%
Dark Sky   70.81% 51.66% 86.83% 86.83% 74.03%
NWS Digital Forecast   70.41% 70.51% 77.14% 77.14% 73.80%
Wetter   67.77% 48.16% 81.31% 81.31% 69.64%
Weatherbit   70.99% 34.16% 82.92% 82.92% 67.75%
OpenWeather   66.39% 44.29% 80.02% 80.02% 67.68%
World Weather Online   56.91% 57.46% 77.62% 77.62% 67.40%
Weather News   53.55% 54.48% 79.78% 79.78% 66.90%
Persistence   34.13% 31.63% 59.93% 59.93% 46.40%

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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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