Weather forecast accuracy details for Eastham, Massachusetts

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   96.67% 87.78% 91.11% 91.11% 91.67%
Microsoft   95.35% 86.05% 87.21% 88.37% 89.24%
Foreca/Vaisala   92.22% 75.56% 86.67% 86.67% 85.28%
AerisWeather   95.56% 72.22% 86.67% 86.67% 85.28%
AccuWeather   93.33% 90.00% 74.44% 75.56% 83.33%
Weatherbit   81.40% 76.74% 76.74% 76.74% 77.91%
Open-Meteo   70.00% 53.33% 88.89% 88.89% 75.28%
OpenWeather   73.33% 46.67% 84.44% 84.44% 72.22%
NWS Digital Forecast   71.11% 77.78% 67.78% 67.78% 71.11%
World Weather Online   76.67% 45.56% 81.11% 81.11% 71.11%
Pirate Weather   91.11% 30.00% 80.00% 80.00% 70.28%
Wetter.com   72.22% 46.67% 57.78% 57.78% 58.61%
Persistence   27.14% 28.57% 48.57% 48.57% 38.21%

Weather Forecast Accuracy Data Last Year (2024)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   86.11% 80.84% 85.61% 85.61% 84.54%
Microsoft   85.64% 82.31% 83.45% 83.86% 83.82%
Foreca/Vaisala   84.67% 77.59% 84.00% 84.00% 82.56%
AccuWeather   84.94% 80.16% 80.98% 79.92% 81.50%
AerisWeather   81.32% 74.43% 84.94% 84.85% 81.38%
Weatherbit   82.54% 75.44% 81.09% 81.29% 80.09%
NWS Digital Forecast   78.23% 65.79% 76.32% 76.32% 74.17%
Pirate Weather   78.74% 47.22% 82.86% 82.86% 72.92%
OpenWeather   66.19% 58.52% 78.03% 78.03% 70.19%
World Weather Online   53.74% 62.45% 71.97% 71.97% 65.03%
Wetter.com   41.86% 58.14% 75.47% 74.81% 62.57%
Persistence   41.94% 40.16% 56.06% 56.06% 48.55%

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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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