Weather forecast accuracy details for Greer, 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   70.97% 82.80% 91.40% 91.40% 84.14%
Weather Underground   68.82% 82.80% 89.25% 89.25% 82.53%
Foreca/Vaisala   63.44% 79.57% 88.17% 88.17% 79.84%
AccuWeather   62.22% 80.00% 87.78% 87.78% 79.44%
AerisWeather   59.34% 79.12% 89.01% 89.01% 79.12%
NWS Digital Forecast   63.44% 83.87% 82.80% 82.80% 78.23%
Dark Sky   60.22% 56.99% 92.47% 92.47% 75.54%
OpenWeather   56.99% 43.01% 92.47% 92.47% 71.24%
World Weather Online   56.99% 40.86% 91.40% 91.40% 70.16%
Weatherbit   42.86% 40.00% 84.62% 84.62% 63.02%
Wetter   56.99% 38.71% 74.19% 74.19% 61.02%
Weather News   51.61% 56.99% 67.74% 67.74% 61.02%
Persistence   20.31% 14.71% 64.06% 64.06% 40.79%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   81.07% 83.19% 86.15% 86.15% 84.14%
Weather Underground   80.79% 83.47% 85.69% 85.69% 83.91%
AccuWeather   78.62% 79.57% 83.80% 82.54% 81.13%
Foreca/Vaisala   71.56% 77.93% 84.03% 84.95% 79.62%
AerisWeather   75.30% 78.17% 82.05% 82.05% 79.39%
Dark Sky   74.70% 69.71% 82.46% 82.46% 77.33%
NWS Digital Forecast   76.11% 78.15% 75.09% 75.09% 76.11%
Wetter   59.37% 55.77% 81.26% 81.26% 69.41%
OpenWeather   60.39% 56.14% 79.78% 79.78% 69.02%
World Weather Online   52.72% 61.87% 78.76% 78.76% 68.03%
Weatherbit   53.81% 58.58% 79.49% 79.49% 67.84%
Weather News   65.28% 66.76% 68.88% 68.88% 67.45%
Persistence   36.66% 33.82% 58.79% 58.79% 47.01%

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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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