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   74.19% 79.57% 84.95% 84.95% 80.91%
Foreca/Vaisala   73.12% 77.42% 83.87% 83.87% 79.57%
Weather Underground   74.19% 80.65% 78.49% 78.49% 77.96%
Dark Sky   75.27% 67.74% 80.65% 80.65% 76.08%
AccuWeather   74.44% 76.67% 74.44% 74.44% 75.00%
NWS Digital Forecast   79.57% 78.49% 68.82% 68.82% 73.92%
AerisWeather   76.67% 62.22% 76.67% 76.67% 73.06%
World Weather Online   74.19% 51.61% 82.80% 82.80% 72.85%
OpenWeather   74.19% 41.94% 81.72% 81.72% 69.89%
Weatherbit   64.84% 36.96% 78.02% 78.02% 64.46%
Wetter   73.12% 37.63% 67.74% 67.74% 61.56%
Weather News   66.67% 47.31% 54.84% 54.84% 55.91%
Persistence   26.15% 16.18% 53.85% 53.85% 37.51%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   82.36% 78.46% 85.52% 85.52% 82.96%
Weather Underground   82.54% 79.02% 82.27% 82.27% 81.52%
AccuWeather   79.21% 76.35% 85.04% 79.96% 80.14%
Dark Sky   76.14% 71.96% 85.33% 85.33% 79.69%
Foreca/Vaisala   76.32% 73.63% 83.39% 82.92% 79.06%
AerisWeather   74.21% 69.37% 80.91% 80.91% 76.35%
NWS Digital Forecast   76.31% 71.72% 72.11% 72.11% 73.06%
OpenWeather   64.72% 46.43% 80.50% 80.50% 68.04%
World Weather Online   61.00% 57.75% 76.32% 76.32% 67.85%
Weatherbit   60.59% 51.09% 78.81% 78.81% 67.33%
Wetter   62.77% 41.13% 76.60% 76.60% 64.28%
Weather News   65.83% 55.25% 65.37% 65.37% 62.95%
Persistence   30.97% 30.48% 54.59% 54.59% 42.66%

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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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