Abstract: In this paper, the methods of trend line and statistical analysis were employed to analyze climate change in Urumqi, Xinjiang and its relationship with the EI Nino/La Nina events based on the data of monthly temperature, precipitation and wind speed at Urumqi Meteorological Station and the statistical results of the EI Nino/La Nina events during the period of 1961-2009. Results indicated that both temperature and precipitation were increased, and wind speed was slightly decreased in recent 49 years. Climate changed towards a warmingwetting pattern. The statistical results showed that 16 EI Nino events and 13 La Nina events occurred during the period of 1961-2009. EI Nino/La Nina events affected seasonal precipitation, annual average temperature and wind speed in Urumqi. In El Nino years, winter precipitation in Urumqi was less than that in normal years, wind speed was slightly lower, and the average temperature was slightly higher. It was easy to occur warm winter and drought in Urumqi in the El Nino years. Spring and summer precipitation and wind speed were high in Urumqi in the La Nina years, and it was easy to occur flood, cold wave and wind disasters during the La Nina events.

Key words: climate change, EI Nino/La Nina, temperature, precipitation, wind speed, meteorological disaster, Urumqi