Weather forecast accuracy details for Port Townsend, Washington

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 (October)

Provider High Temp Low Temp Icon Precip Text Precip Overall
NWS Digital Forecast   88.17% 88.17% 90.32% 90.32% 89.25%
Foreca/Vaisala   92.47% 90.32% 83.87% 83.87% 87.63%
The Weather Channel   87.10% 94.62% 79.57% 79.57% 85.22%
AerisWeather   86.02% 93.55% 80.65% 80.65% 85.22%
AccuWeather   91.95% 89.66% 75.86% 81.61% 84.77%
Microsoft   93.10% 85.06% 79.31% 79.31% 84.20%
Weatherbit   86.02% 93.55% 73.12% 73.12% 81.45%
World Weather Online   64.52% 65.59% 78.49% 78.49% 71.77%
Pirate Weather   78.49% 58.06% 72.04% 72.04% 70.16%
OpenWeather   69.89% 51.61% 78.49% 78.49% 69.62%
Wetter   72.04% 58.06% 66.67% 53.76% 62.63%
Persistence   52.17% 42.86% 57.97% 57.97% 52.74%

Weather Forecast Accuracy Data Last Year (2022)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   88.55% 92.03% 86.08% 86.08% 88.19%
AccuWeather   88.58% 91.36% 88.81% 83.10% 87.96%
Microsoft   88.92% 90.84% 82.60% 82.60% 86.24%
Foreca/Vaisala   87.64% 90.84% 82.69% 82.69% 85.97%
AerisWeather   82.42% 86.36% 81.87% 81.96% 83.15%
NWS Digital Forecast   84.37% 82.61% 76.69% 76.69% 80.09%
Weatherbit   69.03% 63.69% 83.00% 83.00% 74.68%
Wetter   64.56% 71.52% 80.22% 80.22% 74.13%
OpenWeather   71.52% 45.42% 79.58% 79.58% 69.02%
World Weather Online   60.06% 47.66% 77.13% 77.13% 65.50%
Persistence   41.56% 51.28% 66.34% 66.34% 56.38%

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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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