5-day weather forecast for Azusa, California

Weather changeability for Fullerton, California

Temperature Last Month Last Year
Average change in high temperature day-to-day 3.9° 3.8°
Average change in low temperature day-to-day 3.7° 2.8°
Precipitation Last Month Last Year
Chance of dry day after a precip day 100% 57%
Chance of precip day after a dry day 7% 4%

Weather forecast accuracy for Fullerton, California

Last Month
Weather Underground   89.72%
AccuWeather   89.44%
The Weather Channel   88.06%
MeteoGroup   86.67%
NWS Digital Forecast   81.67%
Foreca   80.00%
Dark Sky (forecast.io)   72.22%
Persistence   65.56%
Last Year
AccuWeather   86.64%
MeteoGroup   86.59%
The Weather Channel   86.51%
Weather Underground   86.46%
Foreca   85.07%
NWS Digital Forecast   84.05%
CustomWeather   82.36%
WeatherBug   78.67%
Persistence   71.73%

ForecastAdvisor Fact

On average, Weather Underground's low temperature forecasts for Fullerton were off by 2.24 degrees last month.