diurnal

It is not rare in spring to have a large diurnal range but it is unusual just how dry and sunny it has been lately.

Despite the warmth in the daytime, this has been at odds with the night-time temperatures with a huge difference between - what weather forecasters call diurnal range.

Wilder’s drama, offering a guided tour of an ordinary town going about its diurnal business, reminds us, through the inescapable shadow of mortality, of what we have in common.

Yellow-bellied marmots are an excellent study system because they are diurnal, or active during the day, and they have an address.

The 12 diurnal tiger beetle species that the researchers included in the study are evidence of this.