近年来夏季月平均日照时数在减少。
Monthly mean insolation hours have been decreasing in summer in recent years.
沉降值、降落值与此期间的平均日照时数均呈正相关。
A positive correlation existed between sedimentation value and average sunshine time in the period from heading to maturation.
洱海水面蒸发随着总云量和相对湿度的增加而减小，随着平均风速和日照时数的增大而增大。
Evaporation from Erhai Lake decreases with the increase of total cloud cover and relative humidity, and it increases with the increase of mean wind speed and sunshine duration.
指出本年度年平均气温偏高、年降水量正常略偏少，年日照时数偏少，气象灾害多，发生频繁，气候条件对农业生产有利有弊。
The temperature is a lightly higher, the precipitation is a slightly less, the sunshine time is less and calamities are frequent, which possess advantages and disadvantages to agricultural production.
在阴雨较少的情况下花期温度是影响繁殖率高低的主导因素，其次为日照时数和平均风速。
Under the conditions of less rainy days during the blooming period, the temperature is the main factor influencing the reproductive rate, then is the duration of day and the velocity of wind.
在阴雨较少的情况下花期温度是影响繁殖率高低的主导因素，其次为日照时数和平均风速。
Under the conditions of less rainy days during the blooming period, the temperature is the main factor influencing the reproductive rate, then is the duration of day and the velocity of wind.
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