High-quality data require high-quality, well-calibrated and well-maintained sensors, and careful data quality control and assurance (QC/QA). State-of-the-art, high-quality, automated sensors are selected for NYSM and will sample conditions every 3-60 seconds. Each sensor will be evaluated and calibrated independently and regularly. The data will be quality-controlled by many procedures automatically in real-time and manually by QA meteorologists regularly. In addition, the data will be assessed through comparison with other redundant measurements and model products. The final QCed data will be at 5-min resolution and disseminated and ingested in real-time into weather prediction models and decision tools for users across New York State and beyond. In this talk, an overview of NYSM data processing, QC/QA procedures, and scientific highlights of the data and products will be presented.