Weather forecast accuracy details for Merced, California

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.

Click on the headers to sort by that column.

Weather Forecast Accuracy Data Last Month (October)

Provider High Temp Low Temp Icon Precip Text Precip Overall
AerisWeather   89.66% 94.25% 100.00% 100.00% 95.98%
AccuWeather   86.05% 94.25% 100.00% 100.00% 95.07%
NWS Digital Forecast   85.88% 94.12% 98.82% 98.82% 94.41%
The Weather Channel   86.21% 90.80% 100.00% 100.00% 94.25%
Weather Underground   86.21% 90.80% 100.00% 100.00% 94.25%
Foreca/Vaisala   85.06% 90.80% 100.00% 100.00% 93.97%
Weather News   65.52% 88.51% 98.85% 98.85% 87.93%
Persistence   51.52% 60.94% 100.00% 100.00% 78.11%
Dark Sky   76.74% 29.07% 100.00% 100.00% 76.45%
OpenWeather   67.82% 29.89% 100.00% 100.00% 74.43%
Weatherbit   65.52% 28.74% 100.00% 100.00% 73.56%
Wetter   72.41% 16.09% 100.00% 100.00% 72.13%
World Weather Online   18.39% 54.02% 100.00% 100.00% 68.10%

Weather Forecast Accuracy Data Last Year (2021)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   78.98% 81.20% 96.48% 96.48% 88.29%
Weather Underground   78.33% 81.39% 95.65% 95.65% 87.75%
AccuWeather   81.84% 79.82% 93.94% 95.13% 87.68%
Foreca/Vaisala   78.89% 78.24% 96.78% 95.37% 87.32%
AerisWeather   72.52% 76.69% 94.89% 94.89% 84.75%
NWS Digital Forecast   73.18% 75.70% 92.16% 92.16% 83.30%
Dark Sky   71.57% 45.46% 95.74% 95.74% 77.13%
Weather News   42.35% 68.15% 89.99% 89.99% 72.62%
Weatherbit   49.91% 50.70% 94.52% 94.52% 72.41%
OpenWeather   48.43% 47.87% 94.91% 94.91% 71.53%
World Weather Online   38.81% 54.60% 93.59% 93.59% 70.15%
Persistence   43.91% 44.24% 87.50% 87.50% 65.79%
Wetter   47.31% 22.59% 94.81% 94.81% 64.88%

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.

Please contact us with whatever custom needs you may have. We would love to help!