Weather forecast accuracy details for Salt Lake City, Utah

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   69.89% 53.76% 86.02% 86.02% 73.92%
Dark Sky   67.74% 56.99% 79.57% 79.57% 70.97%
Foreca/Vaisala   76.34% 43.01% 81.72% 81.72% 70.70%
Weather Underground   70.97% 55.91% 77.42% 77.42% 70.43%
Weatherbit   64.52% 41.94% 81.72% 81.72% 67.47%
AerisWeather   53.76% 59.14% 78.49% 78.49% 67.47%
AccuWeather   66.67% 48.39% 75.27% 73.12% 65.86%
Wetter   66.67% 61.29% 64.52% 61.29% 63.44%
NWS Digital Forecast   63.44% 52.69% 66.67% 66.67% 62.37%
OpenWeather   39.78% 46.24% 78.49% 78.49% 60.75%
Weather News   63.44% 36.56% 69.89% 69.89% 59.95%
World Weather Online   20.43% 4.30% 78.49% 78.49% 45.43%
Persistence   27.54% 39.73% 53.62% 53.62% 43.63%

Weather Forecast Accuracy Data Last Year (2022)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   85.07% 78.30% 89.84% 89.84% 85.76%
Weather Underground   85.16% 78.66% 87.45% 87.45% 84.68%
AccuWeather   82.36% 77.44% 84.89% 84.87% 82.39%
AerisWeather   80.59% 73.35% 87.00% 87.00% 81.98%
Dark Sky   77.29% 73.17% 87.45% 87.45% 81.34%
Foreca/Vaisala   73.63% 72.71% 87.91% 87.91% 80.54%
NWS Digital Forecast   81.52% 74.93% 81.52% 81.52% 79.87%
Weather News   71.99% 60.33% 83.10% 83.10% 74.63%
Wetter   58.19% 72.13% 83.80% 82.49% 74.15%
Weatherbit   68.22% 38.00% 85.71% 85.71% 69.41%
OpenWeather   53.11% 41.85% 82.42% 82.42% 64.95%
World Weather Online   60.70% 25.53% 82.00% 82.00% 62.56%
Persistence   34.71% 37.62% 64.08% 64.08% 50.12%

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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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