Weather forecast accuracy details for Fredericksburg, Virginia

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
Foreca/Vaisala   84.44% 88.89% 95.56% 95.56% 91.11%
AccuWeather   90.00% 94.44% 87.78% 87.78% 90.00%
Weather Underground   88.89% 91.11% 90.00% 90.00% 90.00%
The Weather Channel   88.89% 90.00% 90.00% 90.00% 89.72%
AerisWeather   90.00% 92.22% 86.67% 86.67% 88.89%
NWS Digital Forecast   91.11% 92.22% 76.67% 76.67% 84.17%
Wetter   83.33% 81.11% 85.56% 85.56% 83.89%
OpenWeather   66.67% 52.22% 81.11% 81.11% 70.28%
World Weather Online   45.56% 54.44% 76.67% 76.67% 63.33%
Weather News   83.33% 85.56% 76.67% 0.00% 61.39%
Persistence   51.47% 39.44% 55.88% 55.88% 50.67%

Weather Forecast Accuracy Data Last Year (2020)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   79.67% 83.38% 84.77% 84.77% 83.15%
Foreca/Vaisala   80.32% 83.38% 83.57% 83.57% 82.71%
AccuWeather   81.80% 85.98% 78.74% 80.13% 81.66%
Weather Underground   79.48% 83.38% 80.41% 80.41% 80.92%
AerisWeather   79.02% 74.47% 76.42% 76.42% 76.58%
NWS Digital Forecast   79.14% 75.85% 73.03% 73.03% 75.26%
World Weather Online   65.27% 69.27% 77.93% 77.93% 72.60%
OpenWeather   62.77% 63.14% 79.76% 79.76% 71.36%
Wetter   62.93% 71.62% 73.48% 73.48% 70.38%
Weather News   72.80% 71.09% 60.31% 0.00% 51.05%
Persistence   35.46% 29.17% 53.74% 53.74% 43.03%

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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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