Weather forecast accuracy details for Rochester, New Hampshire

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   100.00% 100.00% 100.00% 100.00% 100.00%
Weatherbit   100.00% 100.00% 100.00% 100.00% 100.00%
Microsoft   100.00% 100.00% 90.91% 90.91% 95.45%
OpenWeather   83.33% 33.33% 100.00% 100.00% 79.17%
Open-Meteo   83.33% 83.33% 72.73% 72.73% 78.03%
Foreca   83.33% 100.00% 63.64% 63.64% 77.65%
AerisWeather   83.33% 100.00% 63.64% 63.64% 77.65%
Pirate Weather   100.00% 0.00% 100.00% 100.00% 75.00%
NWS Digital Forecast   60.00% 66.67% 77.78% 77.78% 70.56%
Wetter.com   33.33% 50.00% 90.91% 90.91% 66.29%
World Weather Online   50.00% 16.67% 63.64% 63.64% 48.48%

Weather Forecast Accuracy Data Last Year (2025)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   83.91% 85.45% 90.02% 90.24% 87.41%
The Weather Channel   85.54% 81.26% 90.39% 90.39% 86.90%
AerisWeather   78.56% 76.30% 87.57% 85.82% 82.06%
Foreca   77.33% 75.30% 87.68% 87.68% 82.00%
Weatherbit   73.75% 73.27% 87.79% 88.11% 80.73%
NWS Digital Forecast   74.53% 71.22% 80.46% 80.46% 76.67%
Open-Meteo   62.67% 59.91% 83.21% 83.21% 72.25%
World Weather Online   60.33% 54.71% 83.75% 83.75% 70.64%
OpenWeather   65.77% 50.56% 82.71% 82.71% 70.44%
Pirate Weather   72.02% 36.78% 87.53% 85.12% 70.36%
Wetter.com   46.22% 54.26% 72.96% 71.97% 61.35%
Persistence   25.66% 28.74% 56.31% 56.31% 41.76%

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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