Weather forecast accuracy details for Santa Monica, 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.

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Weather Forecast Accuracy Data Last Month (December)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   93.55% 86.02% 95.70% 95.70% 92.74%
Weather Underground   93.55% 87.10% 90.32% 90.32% 90.32%
Foreca/Vaisala   84.95% 82.80% 93.55% 93.55% 88.71%
AccuWeather   87.10% 80.65% 90.32% 94.62% 88.17%
NWS Digital Forecast   88.89% 82.22% 90.00% 90.00% 87.78%
AerisWeather   86.02% 80.65% 90.32% 90.32% 86.83%
Dark Sky   87.10% 66.67% 94.62% 94.62% 85.75%
Wetter   81.72% 80.65% 84.95% 83.87% 82.80%
Weather News   80.65% 76.34% 83.87% 83.87% 81.18%
World Weather Online   69.89% 52.69% 86.02% 86.02% 73.66%
OpenWeather   89.25% 26.88% 87.10% 87.10% 72.58%
Weatherbit   78.26% 32.26% 88.04% 88.04% 71.65%
Persistence   45.83% 60.81% 73.61% 73.61% 63.47%

Weather Forecast Accuracy Data Last Year (2022)

Provider High Temp Low Temp Icon Precip Text Precip Overall
The Weather Channel   84.34% 90.93% 97.07% 97.07% 92.35%
Weather Underground   84.16% 91.03% 96.89% 96.89% 92.24%
AccuWeather   81.99% 90.16% 96.67% 95.08% 90.97%
Foreca/Vaisala   77.38% 87.73% 96.79% 96.79% 89.67%
Dark Sky   78.30% 74.27% 96.89% 96.89% 86.58%
NWS Digital Forecast   71.27% 85.63% 94.44% 94.44% 86.45%
AerisWeather   68.14% 86.23% 95.32% 95.32% 86.25%
Weather News   68.60% 82.46% 96.14% 96.14% 85.84%
Wetter   61.81% 81.87% 96.25% 96.25% 84.04%
Persistence   59.62% 65.91% 89.96% 89.96% 76.36%
Weatherbit   61.71% 31.71% 96.14% 96.14% 71.43%
OpenWeather   55.95% 24.91% 94.32% 94.32% 67.38%
World Weather Online   30.95% 38.29% 93.66% 93.66% 64.14%

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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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