This type of environmental change would be caused by seasonal fluctuation.

Based on past seasonal fluctuations, he added, the figure is expected to increase in coming weeks.

The investigation of many economic time series becomes problematic due to seasonal fluctuations.

The climate is continental; there are seasonal and daily fluctuations.

Like all wetlands, these depend upon the seasonal fluctuations in the water level.

Water levels are determined by seasonal and annual fluctuations, which may be quite significant.

The numbers are not adjusted to account for seasonal fluctuations.

It sees seasonal fluctuations in the types of birds that call the lake home.

The seasonal fluctuations are small, at least, when compared with the typical French water course.

But for years he still noticed my weight - especially those seasonal fluctuations I've come to accept.