Weather forecast accuracy details for Arcata, 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 (December)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   84.95% 73.12% 92.47% 92.47% 85.75%
AccuWeather   88.17% 76.34% 88.17% 88.17% 85.22%
Foreca/Vaisala   84.95% 75.27% 90.32% 90.32% 85.22%
Weather Underground   87.10% 73.12% 87.10% 87.10% 83.60%
Weather News   88.17% 50.54% 87.10% 87.10% 78.23%
AerisWeather   68.82% 55.91% 89.25% 89.25% 75.81%
NWS Digital Forecast   77.78% 44.44% 86.67% 86.67% 73.89%
Dark Sky   45.16% 67.74% 90.32% 90.32% 73.39%
Wetter   77.42% 46.24% 81.72% 81.72% 71.77%
OpenWeather   65.59% 35.48% 92.47% 92.47% 71.51%
World Weather Online   69.89% 41.94% 86.02% 86.02% 70.97%
Weatherbit   55.56% 38.27% 79.01% 79.01% 62.96%
Persistence   55.56% 39.47% 70.83% 70.83% 59.17%

Weather Forecast Accuracy Data Last Year (2022)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Foreca/Vaisala   79.65% 77.72% 91.16% 91.16% 84.92%
The Weather Channel   74.31% 76.24% 92.63% 92.63% 83.95%
Weather Underground   74.40% 76.52% 91.44% 91.44% 83.45%
AccuWeather   76.75% 74.60% 89.41% 88.61% 82.34%
Weather News   75.07% 62.79% 86.70% 86.70% 77.82%
AerisWeather   68.42% 65.38% 88.49% 88.49% 77.69%
NWS Digital Forecast   61.96% 53.98% 86.45% 86.45% 72.21%
Dark Sky   54.97% 50.37% 90.70% 90.70% 71.69%
OpenWeather   62.43% 44.48% 89.87% 89.87% 71.66%
Wetter   72.01% 29.10% 87.85% 87.85% 69.20%
Weatherbit   51.65% 43.50% 88.97% 88.97% 68.27%
World Weather Online   49.91% 47.61% 84.53% 84.53% 66.64%
Persistence   56.73% 47.91% 70.32% 70.32% 61.32%

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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