Weather forecast accuracy details for Kennesaw, Georgia

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   72.04% 68.82% 88.17% 88.17% 79.30%
AccuWeather   75.27% 73.12% 82.80% 84.95% 79.03%
Dark Sky   64.52% 62.37% 93.55% 93.55% 78.49%
Foreca/Vaisala   64.52% 66.67% 90.32% 90.32% 77.96%
Weather Underground   72.04% 70.97% 80.65% 80.65% 76.08%
AerisWeather   62.37% 69.89% 82.80% 82.80% 74.46%
World Weather Online   56.99% 59.14% 90.32% 90.32% 74.19%
NWS Digital Forecast   62.37% 67.74% 77.42% 77.42% 71.24%
OpenWeather   65.59% 40.86% 89.25% 89.25% 71.24%
Weatherbit   57.95% 38.37% 78.41% 78.41% 63.29%
Weather News   46.24% 49.46% 77.42% 77.42% 62.63%
Wetter   50.54% 41.94% 67.74% 67.74% 56.99%
Persistence   23.94% 14.86% 56.34% 56.34% 37.87%

Weather Forecast Accuracy Data Last Year (2022)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   79.70% 81.94% 86.61% 86.61% 83.72%
Weather Underground   79.55% 83.01% 83.43% 83.43% 82.35%
AccuWeather   77.34% 82.06% 80.67% 81.37% 80.36%
Foreca/Vaisala   72.16% 77.00% 85.96% 85.96% 80.27%
AerisWeather   75.61% 75.79% 84.49% 84.49% 80.09%
Dark Sky   68.25% 70.48% 86.06% 86.06% 77.71%
NWS Digital Forecast   75.16% 75.73% 75.93% 75.93% 75.69%
OpenWeather   65.55% 53.72% 80.70% 80.70% 70.17%
World Weather Online   50.28% 60.24% 79.13% 79.13% 67.20%
Weatherbit   63.72% 39.36% 80.57% 80.57% 66.06%
Weather News   52.94% 49.07% 79.35% 79.35% 65.18%
Wetter   54.75% 48.23% 76.18% 76.18% 63.83%
Persistence   39.24% 36.14% 58.54% 58.54% 48.11%

If this data feeds your inner weather geek, you'll probably be interested in the amazing amount of weather data available from ForecastWatch. Likewise, if you're looking to assess your own forecasting accuracy or would like to make more informed decisions about a weather provider you're considering or already use, we can provide data to help you.

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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