In recent years, a significant number of observatories and universities have been planning to construct optical and infrared telescopes at the Lenghu site in Qinghai Province due to the site’s excellent seeing and clear night sky fraction. Although astronomical performances of the Lenghu site have been reported in detail by numerous papers, there were few reports showing statistics of temperature and wind characteristics in the traditional way required for the design of steel structures of large astronomical telescopes and enclosures, as well as the ventilation and air conditioning systems of these enclosures. The temperature at the Lenghu site exhibits relative stability, with an annual average hourly temperature variation of approximately 1°C. Among all months, the hourly average temperature in May shows the most significant fluctuations, varying 8.7°C over a 24 hr period. Additionally, the temperature difference between midnight and sunrise falls within a ±2°C range for roughly 80% of the observation period. Over the past two years, the meteorological station at the site has recorded a maximum wind speed of 25.2 m s−1 (instantaneous wind speed), and the prevailing wind direction is from the northwest. This paper aims to present such new statistical data on temperature and wind conditions at the site, which could be helpful to inform and aid in such design decisions at the Lenghu site.