Weather forecast accuracy details for Mount Shasta, 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
Microsoft   85.71% 85.71% 97.62% 96.43% 91.37%
AccuWeather   85.56% 70.00% 93.33% 93.33% 85.56%
The Weather Channel   89.25% 55.91% 96.77% 96.77% 84.68%
Weatherbit   82.95% 54.12% 96.59% 97.73% 82.85%
Foreca/Vaisala   72.04% 61.29% 97.85% 97.85% 82.26%
NWS Digital Forecast   82.80% 43.01% 92.47% 92.47% 77.69%
AerisWeather   62.37% 56.99% 95.70% 94.62% 77.42%
OpenWeather   32.26% 36.56% 92.47% 92.47% 63.44%
Open-Meteo   25.81% 22.58% 93.55% 93.55% 58.87%
Wetter   38.71% 25.81% 81.72% 81.72% 56.99%
Pirate Weather   11.83% 19.35% 96.77% 96.77% 56.18%
World Weather Online   8.60% 16.13% 82.80% 82.80% 47.58%
Persistence   19.18% 38.89% 60.27% 60.27% 44.65%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   82.73% 75.87% 91.02% 91.02% 85.16%
The Weather Channel   83.89% 69.71% 91.83% 91.83% 84.31%
AccuWeather   85.95% 72.11% 85.80% 84.46% 82.08%
Foreca/Vaisala   77.00% 68.25% 89.87% 89.87% 81.25%
AerisWeather   80.20% 56.54% 87.79% 87.88% 78.10%
NWS Digital Forecast   80.67% 56.88% 85.63% 85.63% 77.20%
Weatherbit   67.68% 49.95% 86.04% 86.04% 72.43%
OpenWeather   60.59% 43.09% 85.22% 85.22% 68.53%
Pirate Weather   47.65% 32.04% 90.79% 90.79% 65.32%
Wetter   48.62% 33.33% 86.69% 85.12% 63.44%
World Weather Online   51.25% 34.78% 82.61% 82.61% 62.81%
Persistence   37.00% 35.22% 72.26% 72.26% 54.18%

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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