Despite the alarmingly shrinking figures, Helga Haugland Byfuglien, the head of the Norwegian Bishops' Conference, declined to characterize the trend as a "mass exodus."
"The number of withdrawals must be seen in relation to the large number of members of the Norwegian Church," Haugland Byfuglien told Norwegian national broadcaster NRK.
"We have great respect for the people's individual choice," Haugland Byfuglien ensured.
Jens-Petter Johnsen, the head of the Church Council, acknowledged that 25,000 was a giant number, but nevertheless predicted that August's exceptional figures would be a dramatic anomaly.
"We anticipate the withdrawal figures to go down dramatically as the media attention dies down," Johnsen told Norwegian Christian newspaper Dagen.
The Norwegian Church numbers 3.9 million members, including Norwegian expats. So far this year, the church received a total of 34,331 withdrawals as opposed to only 2,035 new enrolments.
Until four years ago, the Lutheran Church of Norway was the country's official, state-funded religious institution, but a drive to separate church and state resulted in a parliamentary vote to cut ties between the country and the church in May, 2012.