Weather forecast accuracy details for Alturas, 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 (February)

Provider High Temp Low Temp Icon Precip Text Precip Overall
NWS Digital Forecast   88.51% 59.77% 81.61% 81.61% 77.87%
Weatherbit   89.66% 64.37% 77.01% 77.01% 77.01%
AerisWeather   89.66% 51.72% 82.76% 82.76% 76.72%
AccuWeather   81.82% 64.47% 79.22% 79.22% 76.18%
Foreca/Vaisala   91.95% 58.62% 77.01% 77.01% 76.15%
The Weather Channel   87.36% 56.32% 79.31% 79.31% 75.57%
Microsoft   77.50% 65.00% 75.00% 76.25% 73.44%
Open-Meteo   67.82% 41.38% 82.76% 82.76% 68.68%
OpenWeather   68.97% 21.84% 79.31% 79.31% 62.36%
Wetter   67.82% 37.93% 65.52% 62.07% 58.33%
Pirate Weather   40.23% 22.99% 81.61% 81.61% 56.61%
World Weather Online   37.93% 33.33% 72.41% 72.41% 54.02%
Persistence   32.31% 26.15% 55.38% 55.38% 42.31%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   86.11% 65.83% 88.77% 88.77% 82.37%
Microsoft   80.12% 68.66% 86.19% 86.19% 80.29%
AccuWeather   83.29% 66.60% 82.98% 82.12% 78.75%
Foreca/Vaisala   77.50% 60.93% 87.94% 87.94% 78.58%
AerisWeather   80.28% 53.52% 84.71% 85.36% 75.97%
NWS Digital Forecast   80.41% 53.48% 81.35% 81.35% 74.15%
Weatherbit   76.34% 45.28% 83.79% 83.79% 72.30%
OpenWeather   71.02% 23.06% 83.43% 83.43% 65.23%
Wetter   65.46% 28.70% 80.94% 79.01% 63.53%
Pirate Weather   54.87% 24.33% 86.43% 86.43% 63.01%
World Weather Online   55.86% 31.40% 80.94% 80.94% 62.29%
Persistence   39.48% 29.25% 65.72% 65.72% 50.04%

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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