Weather forecast accuracy details for Trenton, New Jersey

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
Dark Sky   86.02% 80.65% 80.65% 80.65% 81.99%
The Weather Channel   86.02% 77.42% 81.72% 81.72% 81.72%
Foreca/Vaisala   81.72% 73.12% 84.95% 84.95% 81.18%
AccuWeather   92.22% 78.89% 76.67% 76.67% 81.11%
AerisWeather   78.89% 66.67% 83.33% 83.33% 78.06%
Weather Underground   84.95% 77.42% 74.19% 74.19% 77.69%
NWS Digital Forecast   77.42% 64.52% 70.97% 70.97% 70.97%
World Weather Online   66.67% 62.37% 77.42% 77.42% 70.97%
OpenWeather   79.57% 38.71% 82.80% 82.80% 70.97%
Wetter   82.80% 60.22% 64.52% 64.52% 68.01%
Weatherbit   69.57% 41.30% 73.91% 73.91% 64.67%
Weather News   78.49% 51.61% 58.06% 58.06% 61.56%
Persistence   18.46% 16.18% 52.31% 52.31% 34.81%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   83.47% 83.75% 85.19% 85.19% 84.40%
Weather Underground   83.38% 84.77% 82.87% 82.87% 83.47%
Foreca/Vaisala   81.15% 80.41% 85.85% 86.11% 83.38%
AccuWeather   82.35% 82.92% 83.90% 82.87% 83.01%
Dark Sky   81.62% 68.80% 85.56% 85.56% 80.38%
AerisWeather   77.00% 76.26% 82.73% 82.73% 79.68%
NWS Digital Forecast   77.54% 77.07% 75.23% 75.23% 76.27%
OpenWeather   73.82% 48.19% 80.56% 80.56% 70.78%
Weatherbit   67.87% 57.24% 77.98% 77.98% 70.26%
World Weather Online   65.18% 59.98% 77.59% 77.59% 70.09%
Wetter   73.26% 47.63% 78.24% 78.24% 69.34%
Weather News   70.38% 64.16% 65.28% 65.28% 66.27%
Persistence   31.62% 30.27% 54.69% 54.69% 42.81%

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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