Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Historical Christmas Day weather

Christmas is coming! From the records, what chance is there of a sunny, or stormy, Christmas Day?

NIWA’s Climate Scientist Georgina Griffiths says, “Historically, Christmas Day has a mixed reputation.

“Looking at the last decade, Christmas Day weather has been settled and dry for Auckland, Hamilton, Tauranga and Christchurch, in about two out of three years, on average. For Dunedin and Wellington, the odds of a dry Christmas Day have typically been closer to 50:50.

“New Zealand has enjoyed beautiful Christmas Day weather for the last three years. In both 2009 and 2011 a large anticyclone (High) covered the country, and it was extremely sunny, dry and warm in many regions. Notably, Dunedin had an extremely warm Christmas Day in 2009, hitting 32 degrees in a nor’wester. Christmas Day 2010 was also dry in most places, due to an anticyclone over the Tasman Sea, but it was somewhat cooler, due to south-westerly winds.”

Looking back further, however, we can see Christmas Day weather is not always settled.

Christmas Day in 1975, says Griffiths, “was a shocker.” A very large storm off the east coast of the South Island delivered cold southerlies and rain to many parts of the country. Temperatures struggled to reach 10 degrees in Dunedin, and 13 degrees in Christchurch.

Christmas Day in 2007 was wet for all of the main population centres, while Christmas 1973 was extremely wet in Hamilton and Wellington.

During the tropical cyclone season (November – April), on average, one ex-tropical cyclone comes within 550km of New Zealand. Occasionally, tropical visitors come close to the North Island around Christmas Day. Since 1970, there have been five ex-tropical cyclones that have approached the North Island during December – roughly one every eight years, on average. Ex-tropical cyclone Fergus was the most recent December system, affecting the North Island in December 1996. Fergus produced over 300mm of rain in 24 hours to Coromandel, as it tracked southeastwards across the Bay of Plenty.

Christmas Day highlights:

Christmas Day: AucklandHamiltonTaurangaWellingtonChristchurchDunedin
Sunniest:2009 (13.7 hr)2009 (13.6 hr)1996 (13.9 hr)2011 (14.4 hr)2000 (14.9 hr)1988 (12.4 hr)
Wettest:1987 (24 mm)1973 (26 mm)1926 (47 mm)1973 (49 mm)1975 (18.6 mm)1969 (33 mm)
Warmest:1969 (26.6C)1981 (26.8C)1947 (28.2C)1934 (28.7C)1979 (29.6C)2009 (32.0C)


Whatever weather Christmas Day 2012 does bring to your place, NIWA wishes you a safe and happy holiday season.


ENDS

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

On For Christmas: KiwiRail Ferries Back In Full Operation After Quake

KiwiRail’s Interislander ferries are back in full operation for the first time since the Kaikoura earthquake, with the railspan that allows rail wagons to be loaded on the Aratere now restored. More>>

ALSO:

Comerce Commission Investigation: Prosecutions Over Steel Mesh Labelling

Steel & Tube Holdings, along with two other companies, will be prosecuted by the Commerce Commission following the regulator's investigation into seismic steel mesh, while Fletcher Building's steel division has been given a warning. More>>

ALSO:

Wine: 20% Of Marlborough Storage Tanks Damaged By Quake

An estimated 20 percent of wine storage tanks in the Marlborough region, the country’s largest wine producing area, have been damaged by the impact of the recent Kaikoura earthquake. More>>

ALSO:

ACC: Levy Recommendations For 2017 – 2019 Period

• For car owners, a 13% reduction in the average Motor Vehicle levy • For businesses, a 10% reduction in the average Work levy, and changes to workplace safety incentive products • For employees, due to an increase in claims volumes and costs, a 3% increase in the Earners’ levy. More>>

Women's Affairs: Government Accepts Recommendations On Pay Equity

The Government will update the Equal Pay Act and amend the Employment Relations Act to implement recommendations of the Joint Working Group on Pay Equity. More>>

ALSO:

Immigration: Increase In Seasonal Workers For RSE

The current cap will be increased by 1,000 from 9,500 to 10,500 RSE workers for the 2016-17 season. Mr Woodhouse says the horticulture and viticulture industry is New Zealand’s fourth largest export industry, producing almost $5 billion in exports. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news