Weather forecast accuracy details for Alpena, Michigan

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 (September)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   93.33% 63.33% 87.78% 87.78% 83.06%
Weather Underground   92.22% 65.56% 84.44% 84.44% 81.67%
Foreca/Vaisala   91.11% 54.44% 88.89% 88.89% 80.83%
AccuWeather   86.67% 65.56% 75.56% 74.44% 75.56%
AerisWeather   81.11% 58.89% 81.11% 81.11% 75.56%
NWS Digital Forecast   76.67% 61.11% 80.00% 80.00% 74.44%
OpenWeather   72.22% 48.89% 84.44% 84.44% 72.50%
Wetter   73.33% 41.11% 81.11% 81.11% 69.17%
World Weather Online   66.67% 45.56% 81.11% 81.11% 68.61%
Persistence   32.35% 29.58% 66.18% 66.18% 48.57%
Weather News   53.33% 33.33% 63.33% 0.00% 37.50%

Weather Forecast Accuracy Data Last Year (2020)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   82.59% 67.22% 81.30% 81.30% 78.10%
Weather Underground   82.59% 67.22% 76.67% 76.67% 75.79%
AccuWeather   79.07% 65.00% 77.22% 78.89% 75.05%
Foreca/Vaisala   77.87% 63.80% 78.98% 78.98% 74.91%
AerisWeather   72.31% 56.94% 78.33% 78.33% 71.48%
NWS Digital Forecast   72.27% 57.64% 73.22% 73.22% 69.09%
OpenWeather   54.72% 46.85% 75.37% 75.37% 63.08%
World Weather Online   53.39% 44.66% 75.02% 75.02% 62.02%
Wetter   64.80% 42.18% 68.99% 68.99% 61.24%
Persistence   31.79% 27.53% 54.61% 54.61% 42.14%
Weather News   45.04% 38.33% 57.78% 0.00% 35.29%

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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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