Weather forecast accuracy details for Kahului, Hawaii

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   93.83% 86.42% 83.95% 82.72% 86.73%
AccuWeather   92.21% 71.05% 88.31% 88.31% 84.97%
Weatherbit   92.59% 71.60% 83.95% 83.95% 83.02%
AerisWeather   90.12% 80.25% 79.01% 79.01% 82.10%
The Weather Channel   93.83% 72.84% 80.25% 80.25% 81.79%
Wetter   92.59% 60.49% 76.54% 74.07% 75.93%
Foreca/Vaisala   87.65% 61.73% 74.07% 74.07% 74.38%
Open-Meteo   74.07% 67.90% 71.60% 71.60% 71.30%
NWS Digital Forecast   86.42% 75.31% 55.56% 55.56% 68.21%
Persistence   76.00% 54.00% 68.00% 68.00% 66.50%
Pirate Weather   8.64% 43.21% 71.60% 71.60% 48.77%
OpenWeather   20.99% 40.74% 62.96% 62.96% 46.91%
World Weather Online   7.41% 61.73% 37.04% 37.04% 35.80%

Weather Forecast Accuracy Data Last Year (2023)

Provider High Temp Low Temp Icon Precip Text Precip Overall
Microsoft   93.22% 79.30% 83.42% 83.42% 84.84%
The Weather Channel   92.58% 76.74% 77.93% 77.93% 81.30%
Foreca/Vaisala   85.26% 71.15% 80.68% 80.68% 79.44%
AerisWeather   86.08% 70.42% 76.47% 76.47% 77.36%
AccuWeather   82.91% 76.66% 73.79% 72.46% 76.45%
NWS Digital Forecast   84.65% 71.97% 64.80% 64.80% 71.55%
Weatherbit   61.77% 58.51% 82.51% 82.51% 71.33%
Persistence   81.75% 61.38% 70.41% 70.41% 70.99%
Wetter   68.04% 45.24% 81.68% 81.50% 69.12%
Pirate Weather   3.40% 48.12% 77.04% 77.04% 51.40%
OpenWeather   9.34% 48.81% 53.30% 53.30% 41.19%
World Weather Online   10.82% 58.14% 33.05% 33.05% 33.76%

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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