Weather forecast accuracy details for Glennallen, Alaska

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 (March)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   67.78% 47.78% 91.11% 91.11% 74.44%
The Weather Channel   58.06% 45.16% 86.02% 86.02% 68.82%
Foreca/Vaisala   58.06% 39.78% 88.17% 88.17% 68.55%
Open-Meteo   68.82% 40.86% 79.57% 79.57% 67.20%
AccuWeather   57.78% 37.78% 80.00% 78.89% 63.61%
Pirate Weather   26.88% 32.26% 90.32% 90.32% 59.95%
Wetter   33.33% 24.73% 89.25% 89.25% 59.14%
NWS Digital Forecast   52.69% 30.11% 76.34% 76.34% 58.87%
AerisWeather   48.39% 37.63% 70.97% 70.97% 56.99%
Persistence   42.86% 10.39% 80.52% 80.52% 53.57%
OpenWeather   30.11% 13.98% 84.95% 84.95% 53.49%
World Weather Online   26.88% 18.28% 44.09% 44.09% 33.33%
Weatherbit   46.24% 25.81% 29.03% 29.03% 32.53%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   70.17% 57.04% 79.03% 79.03% 71.32%
The Weather Channel   67.97% 56.45% 79.56% 79.56% 70.88%
Foreca/Vaisala   64.07% 54.50% 77.53% 77.53% 68.41%
AccuWeather   64.61% 46.82% 72.66% 71.99% 64.02%
NWS Digital Forecast   56.43% 46.57% 71.32% 71.32% 61.41%
AerisWeather   57.45% 47.21% 67.96% 67.96% 60.14%
OpenWeather   52.46% 34.73% 73.30% 73.30% 58.44%
Wetter   49.58% 40.39% 67.86% 66.30% 56.03%
World Weather Online   47.13% 42.66% 66.67% 66.67% 55.78%
Pirate Weather   43.39% 36.31% 69.99% 69.99% 54.92%
Weatherbit   46.89% 38.63% 60.68% 60.68% 51.72%
Persistence   38.03% 28.88% 57.54% 57.54% 45.50%

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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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