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 (March)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   97.85% 78.49% 84.95% 84.95% 86.56%
Microsoft   86.81% 80.22% 89.01% 89.01% 86.26%
Foreca/Vaisala   94.62% 76.34% 83.87% 83.87% 84.68%
AccuWeather   96.67% 68.89% 83.33% 82.22% 82.78%
NWS Digital Forecast   86.02% 70.97% 86.02% 86.02% 82.26%
AerisWeather   84.95% 80.65% 81.72% 81.72% 82.26%
Weatherbit   86.02% 54.84% 84.95% 84.95% 77.69%
Wetter   66.67% 52.69% 69.89% 67.74% 64.25%
OpenWeather   26.88% 47.31% 90.32% 90.32% 63.71%
Open-Meteo   36.56% 36.56% 88.17% 88.17% 62.37%
Pirate Weather   32.26% 38.71% 84.95% 84.95% 60.22%
World Weather Online   27.96% 36.56% 84.95% 84.95% 58.60%
Persistence   50.68% 50.68% 64.38% 64.38% 57.53%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   87.58% 83.84% 94.79% 94.79% 90.25%
Foreca/Vaisala   86.48% 80.55% 94.61% 94.61% 89.06%
Microsoft   85.05% 82.06% 94.31% 94.31% 88.93%
AccuWeather   83.41% 75.76% 92.51% 91.66% 85.84%
AerisWeather   80.00% 70.68% 93.52% 93.52% 84.43%
NWS Digital Forecast   70.07% 67.31% 91.90% 91.90% 80.29%
Weatherbit   65.71% 64.77% 92.66% 92.66% 78.95%
Wetter   66.85% 42.47% 91.60% 90.23% 72.79%
Pirate Weather   54.91% 45.82% 93.11% 93.11% 71.74%
OpenWeather   48.49% 52.42% 91.87% 91.87% 71.16%
World Weather Online   47.71% 45.81% 89.90% 89.90% 68.33%
Persistence   50.49% 45.87% 80.12% 80.12% 64.15%

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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