利用濉溪县1987-2006年20年逐日气温资料分析表明,旬最低气温、旬最高气温、旬5日滑动平均最低气温和低于某一临界值的旬日数,均与旬均温呈极显著直线相关关系,当旬均温>3.6℃、或10.0℃、或15.6℃时,整旬逐日日均温和5日滑动平均值一般不会<0℃、5℃或10℃。不同临界值的年度积温与年度合计温度、临界值以上的逐日合计温度和逐旬合计温度均呈极显著直线相关关系。在只有逐旬气象资料的时候,可以利用逐旬合计温度来估算年度积温。 Based on 20-year daily temperature data from 1987 to 2006 in Suixi County, it was found that the minimum temperature at ten days, the maximum temperature at ten days, the average daily minimum temperature at ten days and the ten days of days below a certain threshold all showed extremely significant straight lines Correlation, average daily temperature> 3.6 ℃, or 10.0 ℃, or 15.6 ℃, the whole day by day average daily average of 5 and sliding average will not generally <0 ℃, 5 ℃ or 10 ℃. The annual accumulated temperature with different critical values ​​showed extremely significant linear correlation with the annual total temperature, the daily total temperature above the critical value and the total temperature at the end of the ten-day period. In the meantime, the annual accumulated temperature can be estimated by using the total temperature of ten days.