Weather forecast accuracy details for Willimantic, Connecticut

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   88.64% 75.00% 84.09% 85.23% 83.24%
The Weather Channel   83.87% 69.89% 89.25% 89.25% 83.06%
Microsoft   84.27% 77.53% 84.34% 84.27% 82.60%
AerisWeather   80.65% 65.59% 87.10% 86.02% 79.84%
NWS Digital Forecast   78.57% 66.67% 83.33% 83.33% 77.98%
Weatherbit   78.41% 73.86% 76.14% 76.14% 76.14%
World Weather Online   81.72% 55.91% 81.72% 81.72% 75.27%
Foreca/Vaisala   55.91% 67.74% 84.95% 84.95% 73.39%
Open-Meteo   79.57% 53.76% 79.57% 79.57% 73.12%
Pirate Weather   81.72% 29.03% 90.32% 90.32% 72.85%
OpenWeather   78.49% 45.16% 79.57% 79.57% 70.70%
Wetter   74.19% 49.46% 76.34% 73.12% 68.28%
Persistence   35.90% 28.57% 50.00% 50.00% 41.12%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   84.45% 74.55% 86.71% 86.71% 83.11%
The Weather Channel   83.06% 67.67% 89.29% 89.29% 82.33%
Foreca/Vaisala   79.12% 68.13% 85.90% 85.90% 79.76%
AccuWeather   82.41% 72.08% 81.56% 80.99% 79.26%
AerisWeather   76.10% 63.92% 85.62% 85.62% 77.82%
Weatherbit   74.64% 61.48% 81.56% 81.56% 74.81%
NWS Digital Forecast   75.44% 63.30% 78.48% 78.48% 73.92%
Pirate Weather   64.65% 34.07% 87.14% 87.14% 68.25%
OpenWeather   67.40% 47.80% 78.11% 78.11% 67.86%
Wetter   59.16% 47.44% 81.78% 78.48% 66.71%
World Weather Online   60.65% 50.81% 76.03% 76.03% 65.88%
Persistence   35.37% 26.32% 51.77% 51.77% 41.31%

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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