Weather forecast accuracy details for Mammoth, Arizona

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 (February)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Foreca/Vaisala   81.61% 91.95% 87.36% 87.36% 87.07%
AerisWeather   82.76% 83.91% 87.36% 87.36% 85.34%
AccuWeather   84.93% 83.33% 84.93% 87.67% 85.22%
The Weather Channel   78.16% 87.36% 87.36% 87.36% 85.06%
Microsoft   79.73% 81.33% 86.49% 85.14% 83.17%
Weatherbit   82.76% 83.91% 80.46% 80.46% 81.90%
NWS Digital Forecast   78.16% 68.97% 88.51% 88.51% 81.03%
Wetter   79.31% 59.77% 80.46% 67.82% 71.84%
Open-Meteo   73.56% 29.89% 82.76% 82.76% 67.24%
World Weather Online   42.53% 47.13% 88.51% 88.51% 66.67%
OpenWeather   57.47% 25.29% 88.51% 88.51% 64.94%
Pirate Weather   44.83% 14.94% 87.36% 87.36% 58.62%
Persistence   31.25% 44.44% 64.06% 64.06% 50.95%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   91.51% 80.37% 92.69% 92.69% 89.32%
Microsoft   88.55% 77.78% 91.62% 91.62% 87.39%
Foreca/Vaisala   87.67% 78.08% 91.51% 91.51% 87.19%
AccuWeather   90.14% 75.85% 90.24% 89.29% 86.38%
AerisWeather   85.39% 76.99% 89.13% 89.13% 85.16%
Weatherbit   85.52% 67.00% 91.29% 91.29% 83.78%
NWS Digital Forecast   88.56% 65.50% 83.38% 83.38% 80.20%
Wetter   79.73% 54.70% 90.50% 89.68% 78.65%
World Weather Online   74.50% 43.08% 87.30% 87.30% 73.04%
Pirate Weather   49.27% 39.01% 91.21% 91.21% 67.67%
OpenWeather   56.80% 35.71% 87.12% 87.12% 66.69%
Persistence   42.35% 42.02% 78.76% 78.76% 60.48%

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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