Weather forecast accuracy details for Sacramento, 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 (October)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   94.62% 94.62% 100.00% 100.00% 97.31%
Weather Underground   94.62% 94.62% 100.00% 100.00% 97.31%
Foreca/Vaisala   89.25% 89.25% 100.00% 100.00% 94.62%
AerisWeather   80.65% 91.40% 98.92% 98.92% 92.47%
Weather News   76.34% 80.65% 100.00% 100.00% 89.25%
AccuWeather   85.87% 69.89% 100.00% 100.00% 88.94%
NWS Digital Forecast   58.89% 91.11% 97.78% 97.78% 86.39%
Wetter   81.72% 55.91% 100.00% 100.00% 84.41%
Persistence   45.71% 66.67% 100.00% 100.00% 78.10%
OpenWeather   78.49% 24.73% 98.92% 98.92% 75.27%
World Weather Online   49.46% 52.69% 96.77% 96.77% 73.92%
Dark Sky   13.98% 76.34% 100.00% 100.00% 72.58%
Weatherbit   73.12% 15.05% 100.00% 100.00% 72.04%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   80.59% 79.57% 96.39% 96.39% 88.24%
Foreca/Vaisala   81.24% 76.79% 96.78% 95.65% 87.62%
Weather Underground   80.32% 79.67% 94.17% 94.17% 87.08%
AccuWeather   82.16% 78.53% 94.32% 93.07% 87.02%
Dark Sky   69.73% 77.72% 94.91% 94.91% 84.32%
AerisWeather   74.21% 73.09% 94.34% 94.34% 83.99%
NWS Digital Forecast   73.36% 73.08% 92.16% 92.16% 82.69%
Weather News   70.01% 72.52% 85.28% 85.28% 78.27%
OpenWeather   53.11% 48.19% 95.19% 95.19% 72.92%
Weatherbit   51.03% 52.95% 92.92% 92.92% 72.45%
World Weather Online   41.81% 52.70% 94.61% 94.61% 70.93%
Wetter   48.84% 26.74% 91.85% 91.02% 64.61%
Persistence   41.53% 42.02% 84.30% 84.30% 63.03%

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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