Weather forecast accuracy details for Petersburg, 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 (February)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   97.65% 85.88% 87.06% 87.06% 89.41%
Foreca/Vaisala   93.10% 90.80% 81.61% 81.61% 86.78%
The Weather Channel   93.10% 85.06% 83.91% 83.91% 86.49%
Open-Meteo   88.51% 80.46% 81.61% 81.61% 83.05%
AccuWeather   95.71% 66.67% 81.43% 82.86% 81.67%
AerisWeather   82.76% 71.26% 79.31% 79.31% 78.16%
OpenWeather   63.22% 68.97% 81.61% 81.61% 73.85%
Wetter   59.77% 50.57% 79.31% 79.31% 67.24%
NWS Digital Forecast   55.17% 50.57% 73.56% 73.56% 63.22%
Persistence   46.97% 27.27% 60.61% 60.61% 48.86%
Pirate Weather   5.75% 34.48% 75.86% 75.86% 47.99%
Weatherbit   13.75% 22.78% 73.75% 73.75% 46.01%
World Weather Online   13.79% 3.45% 77.01% 77.01% 42.82%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   92.55% 88.50% 88.50% 88.50% 89.51%
The Weather Channel   88.95% 90.23% 86.85% 86.85% 88.22%
Foreca/Vaisala   90.68% 86.76% 87.40% 87.40% 88.06%
AerisWeather   81.19% 78.08% 85.66% 85.66% 82.65%
AccuWeather   86.82% 66.76% 80.76% 82.46% 79.20%
OpenWeather   61.74% 63.29% 87.40% 87.40% 74.95%
NWS Digital Forecast   64.19% 57.05% 84.69% 84.69% 72.66%
Wetter   56.89% 68.95% 73.88% 70.96% 67.67%
Persistence   55.54% 51.34% 74.37% 74.37% 63.91%
World Weather Online   39.92% 14.80% 85.20% 85.20% 56.28%
Pirate Weather   17.77% 31.50% 86.36% 86.36% 55.49%
Weatherbit   27.63% 17.11% 80.98% 80.98% 51.67%

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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