Weather forecast accuracy details for Valentines, 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 (August)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Weather Underground   96.77% 95.70% 81.72% 81.72% 88.98%
The Weather Channel   96.77% 95.70% 78.49% 78.49% 87.37%
Foreca/Vaisala   87.10% 92.47% 84.95% 84.95% 87.37%
AccuWeather   91.40% 93.55% 78.49% 81.72% 86.29%
AerisWeather   87.10% 86.02% 74.19% 74.19% 80.38%
Wetter   81.72% 76.34% 69.89% 69.89% 74.46%
OpenWeather   84.95% 78.49% 65.59% 65.59% 73.66%
NWS Digital Forecast   78.89% 90.00% 58.89% 58.89% 71.67%
World Weather Online   68.82% 80.65% 66.67% 66.67% 70.70%
Persistence   69.84% 66.13% 69.84% 69.84% 68.91%
Weather News   84.95% 83.87% 58.06% 0.00% 56.72%

Weather Forecast Accuracy Data Last Year (2020)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   83.05% 81.46% 83.99% 83.99% 83.12%
Weather Underground   83.15% 81.46% 81.46% 81.46% 81.88%
Foreca/Vaisala   79.68% 79.12% 82.30% 82.30% 80.85%
AccuWeather   82.02% 79.87% 78.56% 79.03% 79.87%
NWS Digital Forecast   76.91% 77.29% 75.65% 75.65% 76.38%
AerisWeather   77.34% 74.53% 76.40% 76.40% 76.17%
Wetter   68.83% 47.27% 76.46% 76.46% 67.26%
World Weather Online   63.28% 56.40% 73.92% 73.92% 66.88%
OpenWeather   56.93% 51.78% 77.15% 77.15% 65.75%
Weather News   68.20% 62.03% 60.88% 0.00% 47.78%
Persistence   34.53% 33.15% 53.42% 53.42% 43.63%

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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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