The last remaining Principality Premiership fixture scheduled for the weekend has bowed to the inevitable with Sunday's match between Principality Premiership league leaders Neath and Bedwas falling foul of the big freeze.
A pitch inspection at The Gnoll ruled out any prospect of play with the ground frozen solid and no thaw expected.
A Neath spokesman said, "Thanks to the hard work of our groundsman Stuart Williams, ably assisted by an army of volunteers in covering the pitch, we count ourselves very fortunate in having been able to play the last three games at The Gnoll.
"However, the sub-zero temperatures of the last few days have meant that this was a game too far and even the 'All Black blanket' could not save the Bedwas game.
"Having taken the maximum 15 points from our games against Llandovery, Aberavon and Pontypool, we were hoping to continue the action and the postponement will be a big disappointment to our supporters who have been excited by the rugby they have seen over the holiday period."
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.
Wales skipper Jevon Groves says his side have addressed a few points from Gold Coast and aim to 'hit the ground running' in the next two rounds of the World Series, kicking off with this weekend in Dubai before heading off to South Africa next week.
Wales Sevens manager Steff Thomas is hopeful his side can build from a quarter-final spot in the opening round of the World Series in Australia when his side take part in the forthcoming double header in Dubai and South Africa.