Weather forecast accuracy details for Hermiston, Oregon

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   79.31% 63.22% 74.44% 74.44% 72.85%
Weather Underground   80.46% 63.22% 67.78% 67.78% 69.81%
AerisWeather   75.00% 46.43% 77.01% 77.01% 68.86%
World Weather Online   78.16% 45.98% 73.33% 73.33% 67.70%
Foreca/Vaisala   71.26% 59.77% 68.89% 68.89% 67.20%
OpenWeather   75.86% 39.08% 75.56% 75.56% 66.51%
AccuWeather   73.81% 59.52% 63.22% 63.22% 64.94%
Wetter   75.86% 43.68% 70.00% 70.00% 64.89%
Weatherbit   61.63% 42.53% 75.28% 75.28% 63.68%
NWS Digital Forecast   74.71% 48.28% 65.56% 65.56% 63.52%
Dark Sky   37.93% 44.83% 76.67% 76.67% 59.02%
Weather News   59.77% 44.83% 56.67% 56.67% 54.48%
Persistence   25.42% 27.42% 56.45% 56.45% 41.44%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   81.74% 63.20% 88.52% 88.52% 80.49%
Weather Underground   81.84% 63.58% 87.30% 87.30% 80.00%
AccuWeather   80.87% 66.05% 82.67% 85.36% 78.74%
Foreca/Vaisala   78.00% 57.68% 90.15% 88.05% 78.47%
AerisWeather   74.08% 52.11% 87.64% 87.64% 75.37%
NWS Digital Forecast   75.50% 47.58% 83.51% 83.51% 72.52%
Weatherbit   66.82% 37.73% 86.26% 86.26% 69.27%
OpenWeather   64.33% 32.40% 85.53% 85.53% 66.94%
World Weather Online   56.84% 39.23% 85.71% 85.71% 66.87%
Dark Sky   51.50% 39.98% 87.58% 87.58% 66.66%
Weather News   58.15% 42.98% 82.07% 82.07% 66.32%
Wetter   64.70% 29.78% 85.06% 85.06% 66.15%
Persistence   33.95% 30.49% 69.95% 69.95% 51.09%

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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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