Weather forecast accuracy details for Manassas, Virginia

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
AccuWeather   85.92% 72.86% 91.55% 90.14% 85.12%
The Weather Channel   83.91% 74.71% 90.80% 90.80% 85.06%
Microsoft   87.06% 56.98% 94.12% 92.94% 82.77%
Foreca/Vaisala   80.46% 57.47% 91.95% 91.95% 80.46%
Weatherbit   75.58% 61.63% 88.37% 88.37% 78.49%
NWS Digital Forecast   70.11% 62.07% 88.51% 88.51% 77.30%
AerisWeather   68.97% 51.72% 91.95% 91.95% 76.15%
Open-Meteo   56.32% 31.03% 86.21% 86.21% 64.94%
World Weather Online   55.17% 34.48% 83.91% 83.91% 64.37%
Pirate Weather   49.43% 26.44% 89.66% 89.66% 63.79%
OpenWeather   56.32% 27.59% 83.91% 83.91% 62.93%
Wetter   39.08% 50.57% 82.76% 77.01% 62.36%
Persistence   41.67% 27.87% 53.33% 53.33% 44.05%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   82.28% 73.06% 85.39% 85.39% 81.53%
Microsoft   80.89% 73.29% 83.19% 83.19% 80.14%
AccuWeather   80.85% 74.91% 80.95% 80.38% 79.27%
Foreca/Vaisala   79.09% 69.04% 84.20% 84.20% 79.13%
AerisWeather   75.89% 68.68% 84.11% 84.11% 78.20%
Weatherbit   69.59% 67.33% 80.89% 80.89% 74.67%
NWS Digital Forecast   75.05% 68.55% 77.25% 77.25% 74.53%
World Weather Online   60.17% 52.82% 78.61% 78.61% 67.55%
OpenWeather   57.17% 48.13% 80.64% 80.64% 66.64%
Wetter   54.61% 55.89% 79.00% 76.89% 66.60%
Pirate Weather   59.23% 35.17% 84.11% 84.11% 65.66%
Persistence   33.71% 28.33% 55.39% 55.39% 43.20%

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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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