Weather forecast accuracy details for Tucson, Arizona

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
AerisWeather   86.02% 82.80% 95.70% 95.70% 90.05%
The Weather Channel   84.95% 88.17% 91.40% 91.40% 88.98%
AccuWeather   84.44% 78.89% 91.11% 93.33% 86.94%
Weatherbit   84.95% 79.57% 91.40% 91.40% 86.83%
Foreca/Vaisala   83.87% 72.04% 93.55% 93.55% 85.75%
NWS Digital Forecast   87.10% 69.89% 92.47% 92.47% 85.48%
Microsoft   82.72% 76.25% 85.19% 92.59% 84.19%
Wetter   81.72% 51.61% 84.95% 84.95% 75.81%
World Weather Online   59.14% 44.09% 90.32% 90.32% 70.97%
Open-Meteo   81.72% 25.81% 88.17% 88.17% 70.97%
OpenWeather   68.82% 23.66% 90.32% 90.32% 68.28%
Pirate Weather   47.31% 26.88% 92.47% 92.47% 64.78%
Persistence   34.25% 47.95% 71.23% 71.23% 56.16%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   91.51% 80.37% 92.69% 92.69% 89.32%
Microsoft   88.55% 77.78% 91.62% 91.62% 87.39%
Foreca/Vaisala   87.67% 78.08% 91.51% 91.51% 87.19%
AccuWeather   90.14% 75.85% 90.24% 89.29% 86.38%
AerisWeather   85.39% 76.99% 89.13% 89.13% 85.16%
Weatherbit   85.52% 67.00% 91.29% 91.29% 83.78%
NWS Digital Forecast   88.56% 65.50% 83.38% 83.38% 80.20%
Wetter   79.73% 54.70% 90.50% 89.68% 78.65%
World Weather Online   74.50% 43.08% 87.30% 87.30% 73.04%
Pirate Weather   49.27% 39.01% 91.21% 91.21% 67.67%
OpenWeather   56.80% 35.71% 87.12% 87.12% 66.69%
Persistence   42.35% 42.02% 78.76% 78.76% 60.48%

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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