Weather forecast accuracy details for Norfolk, 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 (October)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   79.57% 77.42% 92.47% 92.47% 85.48%
Weather Underground   76.34% 77.42% 92.47% 92.47% 84.68%
Foreca/Vaisala   78.49% 69.89% 90.32% 90.32% 82.26%
AerisWeather   66.67% 68.82% 92.47% 92.47% 80.11%
AccuWeather   77.17% 68.82% 83.70% 85.87% 78.89%
Wetter   76.34% 56.99% 84.95% 83.87% 75.54%
NWS Digital Forecast   69.89% 69.89% 80.65% 80.65% 75.27%
Weatherbit   76.67% 37.50% 88.89% 88.89% 72.99%
OpenWeather   65.59% 47.31% 86.02% 86.02% 71.24%
World Weather Online   59.14% 50.54% 81.72% 81.72% 68.28%
Weather News   46.24% 41.94% 87.10% 87.10% 65.59%
Dark Sky   37.63% 43.01% 88.17% 88.17% 64.25%
Persistence   31.34% 31.88% 67.16% 67.16% 49.39%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   81.85% 84.54% 88.15% 88.15% 85.67%
Weather Underground   81.67% 84.72% 85.74% 85.74% 84.47%
Foreca/Vaisala   76.94% 81.94% 84.94% 86.02% 82.46%
AccuWeather   78.37% 80.12% 84.85% 81.93% 81.32%
AerisWeather   68.34% 70.86% 84.92% 84.92% 77.26%
NWS Digital Forecast   68.26% 70.69% 78.16% 78.16% 73.82%
Wetter   68.15% 59.35% 81.30% 80.83% 72.41%
Dark Sky   55.09% 59.54% 86.11% 86.11% 71.71%
Weatherbit   65.16% 60.06% 80.04% 80.04% 71.32%
OpenWeather   49.07% 52.59% 79.26% 79.26% 65.05%
World Weather Online   44.07% 55.65% 75.19% 75.19% 62.52%
Weather News   49.54% 57.59% 68.33% 68.33% 60.95%
Persistence   32.97% 37.00% 58.39% 58.39% 46.69%

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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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