Abstract: his paper analyzes the annual and seasonal changes of some metrological factors in the Yuepuhu Oasis in recent 39 years using the methods of regression analysis, trend analysis and 5year moving average analysis using the data of temperature, precipitation, sunshine duration and wind speed observed by the meteorological stations in the oasis during the period from 1971 to 2009. The results show that the annual temperature in the oasis was in an increase trend with an increase rate of 0.21 ℃/10 a in recent 39 years. The change of seasonal temperature was different, that is, the temperature was increased in winter, autumn and spring but decreased in summer. Precipitation in the oasis was in a decrease trend with a decrease rate of -1.62 mm/10 a. Seasonal precipitation was increased in autumn and spring but decreased in summer and winter. Annual sunshine duration in the oasis was in an increase trend with an increase rate of 20.25 h/10 a in recent 39 years. In recent 39 years, wind speed over the oasis was in a decrease trend with a decrease rate of 0.4 m/(s•10 a).

Key words: oasis, climate change, temperature, precipitation, sunshine duration, wind speed, Yuepuhu, Tarim River