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 (January)

Provider High Temp Low Temp Icon Precip Text Precip Overall
AccuWeather   78.41% 73.86% 65.91% 65.91% 71.02%
Weatherbit   75.58% 83.72% 61.63% 61.63% 70.64%
The Weather Channel   78.49% 80.65% 60.22% 60.22% 69.89%
Foreca/Vaisala   70.97% 80.65% 61.29% 61.29% 68.55%
Microsoft   83.33% 73.33% 57.14% 60.00% 68.45%
NWS Digital Forecast   71.11% 80.00% 60.00% 60.00% 67.78%
AerisWeather   70.97% 81.72% 59.14% 59.14% 67.74%
World Weather Online   55.91% 49.46% 63.44% 63.44% 58.06%
Open-Meteo   54.84% 52.69% 55.91% 55.91% 54.84%
Pirate Weather   58.06% 31.18% 62.37% 62.37% 53.49%
Wetter   43.01% 40.86% 64.52% 64.52% 53.23%
OpenWeather   66.67% 20.43% 58.06% 58.06% 50.81%
Persistence   26.92% 31.17% 61.54% 61.54% 45.29%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   78.66% 79.85% 74.98% 74.98% 77.12%
Microsoft   76.53% 79.94% 75.00% 75.00% 76.62%
Foreca/Vaisala   73.90% 77.93% 74.16% 74.16% 75.04%
Weatherbit   68.94% 70.62% 78.56% 78.56% 74.17%
AccuWeather   74.24% 78.63% 69.86% 67.68% 72.60%
AerisWeather   74.82% 76.01% 68.58% 68.58% 72.00%
NWS Digital Forecast   75.75% 75.00% 58.19% 58.19% 66.78%
Wetter   39.56% 49.36% 77.63% 83.29% 62.46%
World Weather Online   54.98% 59.39% 63.61% 63.61% 60.40%
OpenWeather   54.95% 50.73% 65.75% 65.75% 59.30%
Pirate Weather   57.83% 33.79% 69.79% 69.79% 57.80%
Persistence   35.34% 30.96% 57.79% 57.79% 45.47%

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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