5-day weather forecast for La Palma, California

Weather forecast accuracy details for Fullerton, 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
Provider High Temp Low Temp Icon Precip Text Precip Overall
National Weather Service   77.38% 96.43% 100.00% 100.00% 93.45%
MeteoGroup   69.05% 90.48% 100.00% 100.00% 89.88%
Foreca   60.71% 97.62% 100.00% 100.00% 89.58%
CustomWeather   69.05% 84.52% 100.00% 100.00% 88.39%
AccuWeather   57.14% 92.86% 100.00% 100.00% 87.50%
Weather Underground   65.48% 84.52% 100.00% 100.00% 87.50%
WeatherBug   63.10% 85.71% 100.00% 100.00% 87.20%
The Weather Channel   53.57% 94.05% 100.00% 100.00% 86.90%
Persistence   58.75% 86.42% 100.00% 100.00% 86.29%
Dark Sky (forecast.io)   45.24% 69.05% 100.00% 100.00% 78.57%
Weather Forecast Accuracy Data Last Year
Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   68.58% 78.85% 95.87% 95.87% 84.79%
MeteoGroup   62.84% 79.15% 94.06% 94.16% 82.55%
AccuWeather   61.23% 68.48% 95.07% 94.36% 79.78%
Weather Underground   61.03% 64.15% 95.57% 94.96% 78.93%
Foreca   64.84% 54.71% 95.85% 95.85% 77.81%
CustomWeather   57.30% 65.06% 94.26% 94.26% 77.72%
National Weather Service   56.78% 51.42% 94.33% 89.78% 73.08%
WeatherBug   49.01% 50.73% 90.32% 90.32% 70.10%
Persistence   37.72% 56.91% 88.26% 88.26% 67.79%
 
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