Weather forecast accuracy details for North Charleston, South Carolina

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 (December)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   73.12% 82.80% 93.55% 93.55% 85.75%
Weather Underground   73.12% 84.95% 87.10% 87.10% 83.06%
AccuWeather   73.12% 79.57% 83.87% 83.87% 80.11%
Foreca/Vaisala   67.74% 77.42% 87.10% 87.10% 79.84%
Dark Sky   60.22% 77.42% 88.17% 88.17% 78.49%
NWS Digital Forecast   60.22% 78.49% 87.10% 87.10% 78.23%
AerisWeather   46.24% 73.12% 86.02% 86.02% 72.85%
World Weather Online   60.22% 59.14% 83.87% 83.87% 71.77%
Wetter   46.24% 74.19% 79.57% 78.49% 69.62%
Weather News   51.61% 55.91% 82.80% 82.80% 68.28%
OpenWeather   46.24% 39.78% 83.87% 83.87% 63.44%
Weatherbit   39.78% 36.96% 81.72% 81.72% 60.05%
Persistence   20.29% 16.44% 53.62% 53.62% 35.99%

Weather Forecast Accuracy Data Last Year (2022)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Weather Underground   85.11% 84.57% 82.28% 82.28% 83.56%
The Weather Channel   85.02% 84.11% 82.56% 82.56% 83.56%
Foreca/Vaisala   81.64% 79.54% 84.20% 84.20% 82.40%
AccuWeather   82.69% 83.06% 81.33% 77.69% 81.19%
AerisWeather   77.99% 79.45% 80.09% 80.09% 79.41%
NWS Digital Forecast   79.71% 81.08% 76.49% 76.49% 78.44%
Dark Sky   76.53% 78.08% 79.27% 79.27% 78.29%
Wetter   75.43% 70.23% 80.55% 79.82% 76.51%
Weather News   72.36% 73.76% 78.59% 78.59% 75.82%
OpenWeather   67.12% 58.26% 74.89% 74.89% 68.79%
Weatherbit   63.09% 45.58% 77.59% 77.59% 65.96%
World Weather Online   44.69% 65.29% 72.44% 72.44% 63.71%
Persistence   41.91% 35.79% 60.99% 60.99% 49.92%

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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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