There's no twilight, and little seasonal variation in the length of the day.
2. statistics, economics
a difference that is related to the particular time of year
Adjusting for seasonal variations, factory gate prices were unchanged.
Examples of 'seasonal variation' in a sentence
seasonal variation
Only later did he discover the reason for this seasonal variation.
Times, Sunday Times (2017)
But it does include a sub-diagnosis taking into account seasonal variation in symptoms.
The Sun (2013)
Mallorca finished a surprising fourth in the rankings — surprising because its airport has quite a high seasonal variation (42.5).
Times, Sunday Times (2016)
And although it was mostly mud, there were seasonal variations.
The Sun (2018)
Sales are adjusted for seasonal variations but not for inflation.
Houston Chronicle (2001)
The local jobless rate is not adjusted for seasonal variations.
Houston Chronicle (2010)
We are normally more or less in balance, subject to slight seasonal variations.
Times, Sunday Times (2008)
They are also not adjusted for seasonal variations.
Times, Sunday Times (2007)
While seasonal variations in risk of disease are statistically significant, and likely to be genuine, most cases involved small increases in overall risk.
Times, Sunday Times (2011)
The professor has mapped out the seasonal variations for dengue virus at each of the stadiums.