5-day weather forecast for Ellerslie, Maryland

Weather forecast accuracy details for Johnstown, Pennsylvania

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.

Click on the headers to sort by that column.
Weather Forecast Accuracy Data Last Month
Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   55.56% 66.67% 79.01% 79.01% 70.06%
AccuWeather   54.32% 65.43% 74.07% 79.01% 68.21%
Weather Underground   46.91% 56.79% 75.31% 74.07% 63.27%
NWS Digital Forecast   56.79% 60.49% 66.67% 66.67% 62.65%
CustomWeather   49.38% 65.43% 66.67% 66.67% 62.04%
National Weather Service   54.32% 56.79% 69.14% 67.90% 62.04%
Intellicast   34.57% 40.74% 79.01% 79.01% 58.33%
World Weather Online   38.27% 40.74% 70.37% 70.37% 54.94%
Persistence   16.44% 13.89% 57.53% 57.53% 36.35%
Weather Forecast Accuracy Data Last Year
Provider High Temp Low Temp Icon Precip Text Precip Overall
CustomWeather   59.01% 69.29% 77.44% 77.34% 70.77%
AccuWeather   57.56% 68.56% 72.00% 76.56% 68.67%
NWS Digital Forecast   60.86% 64.69% 72.34% 72.34% 67.56%
National Weather Service   48.63% 64.88% 74.68% 74.47% 65.67%
The Weather Channel   35.38% 57.06% 77.27% 77.27% 61.74%
Intellicast   35.27% 56.89% 77.34% 77.34% 61.71%
Persistence   31.08% 26.87% 52.29% 52.29% 40.63%
 
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