5-day weather forecast for Chino Hills, California

Weather forecast accuracy details for Chino Hills, California

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 (June)
Provider High Temp Low Temp Icon Precip Text Precip Overall
Weather Underground   76.19% 76.19% 96.55% 96.55% 86.37%
The Weather Channel   76.19% 72.62% 94.25% 94.25% 84.33%
AccuWeather   72.62% 71.43% 95.40% 96.55% 84.00%
Foreca   63.10% 82.14% 93.10% 93.10% 82.86%
Aeris Weather   58.33% 48.81% 94.25% 94.25% 73.91%
NWS Digital Forecast   58.33% 42.86% 93.10% 93.10% 71.85%
Persistence   34.92% 67.19% 89.23% 89.23% 70.14%
Open Weathermap   50.00% 36.90% 94.25% 94.25% 68.85%
World Weather Online   54.76% 21.43% 94.25% 94.25% 66.17%
Wetter   30.95% 0.00% 96.55% 96.55% 56.01%
Weather News   62.65% 64.29% 96.51% 0.00% 55.86%
Weather Forecast Accuracy Data Last Year (2019)
Provider High Temp Low Temp Icon Precip Text Precip Overall
AccuWeather   84.00% 84.00% 93.41% 92.94% 88.58%
The Weather Channel   84.38% 77.94% 93.41% 94.07% 87.45%
Foreca   76.14% 82.48% 92.09% 92.09% 85.70%
Weather Underground   84.33% 77.97% 84.99% 93.48% 85.19%
NWS Digital Forecast   80.08% 74.15% 90.05% 90.05% 83.58%
World Weather Online   63.45% 14.30% 87.48% 87.48% 63.17%
Wetter   53.68% 15.85% 89.17% 89.17% 61.97%
Persistence   36.38% 53.06% 78.68% 78.68% 61.70%
Weather News   52.39% 38.87% 84.58% 51.31% 56.79%
 
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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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