The dew point temperature on the digital display of a hygrothermometer is observed to the nearest what of a degree?

The dew point temperature displayed on a hygrothermometer is typically observed to the nearest tenth of a degree. This level of precision allows for a more accurate representation of moisture content in the atmosphere, which is essential for assessing weather conditions and forecasting. The tenth of a degree granularity is sufficient for most weather-related applications, providing reliable data without unnecessary complexity.

While whole numbers, fifths, or hundredths of a degree may seem like plausible options, they do not align with the common practice in meteorological instruments where a tenth is usually the finest resolution that is standardly presented. Therefore, understanding the capability and design of a hygrothermometer is key to recognizing why the answer is the nearest tenth of a degree, as it reflects an industry standard in measuring dew point accurately and meaningfully in the context of aviation weather reporting.