Chronicle commercial leader Gené Toyne said "This is also exciting news for our local regular advertisers to see the value to utilise this platform to promote and grow their business."
Gillespie said 2020, despite its challenges, had been a time of growth for the Chronicle, and the readership boost had reflected that.
"We look forward to gaining even more readers with improvements including the new weekend lifestyle liftout and the new Monday Money section."
Other NZME newspapers also recorded significant readership increases - including The New Zealand Herald, which now has an average issue readership of 546,000 (15+). This is up 105,000 versus the previous period and up 74,000 versus a year ago.
Herald on Sunday readership is now 354,000 - up 50,000 versus the previous period and up 37,000 from a year ago.
Readership of Travel magazine, which is included in the Whanganui Chronicle and The New Zealand Herald on Tuesdays, now sits at 417,000 - up 63,000 versus the previous period and up 70,000 compared with a year ago. (Source: Nielsen CMI Q3 19 – Q2 20 AP15+)