Abstract: In this paper, the events of extreme high-temperature and extreme heavy-precipitation in Shanxi Province were analyzed using Mann-Kendall test and wavelet analysis based on the daily highest temperature and precipitation data observed by 68 meteorological stations. The results show that the increase of extreme high-temperature was significant with an increase rate of 5.9 d/10 a, it was not so high before the mid-1990s but significant since 1997. Moreover, the extreme heavy-precipitation days were decreased in recent 48 years, but the trend was not obvious. There was a sharp change of extreme high-temperature days in 2001, and the extreme high-temperatures days were increased significantly since 2001. The increase of extreme high-temperature days was closely related to climate warming, and it was strongly affected by high sea temperature in Nino_3, strong latitudinal circulation over Eurasia and large-area Western Pacific High. The increase of extreme heavy-precipitation days was closely related to the low sea temperature in Nino_3 and strong East Asian Monsoon.

Key words: extreme high-temperature, extreme heavy-precipitation, sharp change, spatiotemporal change, monsoon, sea temperature, atmospheric circulation, Shanxi Province