The phrase "an average of each day" is correct and usable in written English.
It can be used when discussing the calculation of daily averages over a specific period, such as in reports or analyses.
Example: "To assess the performance, we calculated an average of each day over the past month."
Alternatives: "a daily average" or "the mean for each day".
Between Thanksgiving and New Year's Day, the fund received an average of $84,822.54 each day.
Britain's betting addiction – Problem online gamblers are betting through the night and all week, spending an average of £98 each day on their habit.
Eritrean refugees are currently arriving into the camps in northern Ethiopia at an average of 200 each day, according to Onyango.
In December, the Egyptian Commission for Rights and Freedoms said it had registered 340 forced disappearances within two months in the country — an average of three each day.
The latest available data on suicide rates, published by the Centers for Disease Control, shows that 38,364 suicides occurred in the United States in 2010 -- an average of 105 each day.
There are an average of three each Sunday.
According to the latest figures from the British Heart Foundation, cardiovascular disease causes more than a quarter (27%) of all deaths in the UK – around 155,000 deaths each year – an average of 425 people each day or one death every three minutes.
The previous four days had seen an average of 1,000 sold each day - almost double the daily sale record.
Also, those jets are only in the sky for about an hour a day, as opposed to commercial aircraft, which fly an average of 11 hours each day.
He declined to provide raw stats, but back in February News In Shorts claimed 40percentt of all registered users logged in each week, while daily users browsed an average of 50 stories each day.
In April the Daily Telegraph sold an average of 817,692 copies each day, according to official ABC figures for last month, with the Sunday Telegraph averaging a circulation of 590,970.
