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.

Click on the headers to sort by that column.

Weather Forecast Accuracy Data Last Month (October)

Provider High Temp Low Temp Icon Precip Text Precip Overall
NWS Digital Forecast   100.00% 85.56% 93.33% 93.33% 93.06%
The Weather Channel   95.70% 86.02% 93.55% 93.55% 92.20%
Weather Underground   95.70% 86.02% 93.55% 93.55% 92.20%
AerisWeather   100.00% 83.87% 92.47% 92.47% 92.20%
AccuWeather   93.48% 79.57% 94.57% 94.57% 90.54%
Foreca/Vaisala   89.25% 81.72% 90.32% 90.32% 87.90%
Weather News   91.40% 73.12% 92.47% 92.47% 87.37%
Wetter   51.43% 87.50% 94.29% 94.29% 81.88%
Dark Sky   75.27% 77.42% 87.10% 87.10% 81.72%
Weatherbit   82.80% 40.86% 92.47% 92.47% 77.15%
OpenWeather   76.34% 41.94% 88.17% 88.17% 73.66%
World Weather Online   57.78% 16.67% 90.00% 90.00% 63.61%
Persistence   58.82% 56.52% 69.12% 69.12% 63.40%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   83.52% 78.06% 89.26% 89.26% 85.02%
Weather Underground   83.15% 78.24% 88.89% 88.89% 84.79%
Foreca/Vaisala   76.60% 74.47% 89.78% 88.49% 82.33%
AccuWeather   82.97% 76.55% 83.24% 85.03% 81.95%
Dark Sky   74.72% 62.87% 89.07% 89.07% 78.94%
AerisWeather   76.09% 70.44% 82.76% 82.76% 78.01%
NWS Digital Forecast   74.07% 73.07% 80.36% 80.36% 76.96%
Wetter   70.47% 56.32% 85.09% 84.71% 74.15%
Weatherbit   67.78% 49.12% 83.71% 83.71% 71.08%
Weather News   67.13% 61.67% 77.31% 77.31% 70.86%
OpenWeather   60.28% 46.67% 79.44% 79.44% 66.46%
World Weather Online   46.67% 46.11% 81.11% 81.11% 63.75%
Persistence   34.07% 35.61% 66.74% 66.74% 50.79%

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.

Please contact us with whatever custom needs you may have. We would love to help!