Hello, I wonder if you can help me find out the precipitation situation in Yan'an or Shaanxi from April to November in 2011! Paper urgently needed! Thank you very much

1. There was abnormally high precipitation in September, and strong autumn showers occurred. In September 2011, the strongest autumn shower occurred in the same period in history since 1961. The process lasted for 18 days, and the average precipitation was 260.8 mm. , 1.8 times more than the same period last year. 2. Regional heavy rains occurred across the province from north to south in early July. From July 1 to 3, there was an obvious precipitation weather process in our province from north to south. During this period, there were three heavy rain days, and the rainfall areas were in Yulin and northern Yan'an. From the early morning of July 5th to the 6th, persistent heavy rainfall occurred in Ankang, Hanzhong, and other places in our province. The rainfall was concentrated in concentrated areas, resulting in heavy rainfall and serious disasters. 3. Winter drought, January was unusually cold. From November 2010 to mid-February 2011, most areas in Shaanxi did not receive effective precipitation for more than 100 days. Precipitation in most parts of the province was less than 50%, with most areas in northern Shaanxi experiencing precipitation. The weather has dropped by more than 80%, and drought has occurred in most parts of northern Shaanxi and Guanzhong. In January 2011, strong cold air activities were frequent, and the monthly average temperature was -4.5°C, 3.0°C lower, which was the second lowest since 1961. 4. There was a lot of precipitation and high temperatures in November, breaking through historical extremes. The province's average temperature in November 2011 hit the highest value since 1961, and the province's average precipitation hit the highest value since 1961. As a result, winter begins later in Guanzhong and southern Shaanxi. Monthly precipitation in northern and southern Shaanxi exceeded historical extreme values. 5. High temperatures and heat waves in summer. The high temperature in Xi'an refreshed the extreme maximum temperature in early June 1960. Among them, on June 7, the highest temperature in 41 counties and districts in the province exceeded 35°C, and the highest temperature in 7 counties and districts exceeded 40°C. The highest temperature in Xi'an reached 40.3°C, setting a new record for the highest temperature in early June in the past 60 years. 6. The continuous heavy rains in late July and early August lasted for a long time. From July 28 to August 1, large-scale heavy rains occurred in our province. The falling areas were mainly in southern Shaanxi, central and western Guanzhong and southern Shaanxi, which brought great harm to the people. Certain losses were caused to life, property safety and traffic. In July, 79 counties (districts) in 10 cities across the province suffered from hailstorms, heavy rains and floods, causing direct economic losses of 3.317 billion yuan. 7. Early winter haze weather was frequent, wide-ranging, and had a great impact. From November to December 2011, haze weather occurred in large areas of the province. 8. At the end of April, windy and dusty weather occurred in our province, and sandstorms occurred in Yulin and Shenmu. 9. Strong convective weather such as hail, thunderstorms, and strong winds occurred in mid-July. From July 13 to 22, strong convective weather such as hail, strong winds, and thunderstorms occurred across the province from south to north for 9 consecutive days. October. Thunder and lightning weather occurred in our province in November. There were 5 thunderstorm days in November. The strongest one occurred on the 28th and 29th, distributed in Guanzhong and southern Shaanxi. Thunder and lightning are relatively rare in late November. Today is New Year's Day. According to the weather forecast, there will be cold air activity tomorrow and the day after tomorrow, but the possibility of snow is small.