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

 

Prefu Roundup: Forecasts Revised, Surplus Intact

The National government heads into the election with its Budget surplus target broadly intact, delivering a set of economic and fiscal forecasts marginally revised from May to reflect weaker commodity prices and a lower tax take. More>>

ALSO:

Convention Centre: Major New SkyCity Hotel And Laneway For Auckland

Today SKYCITY Entertainment Group Limited revealed plans to build a new hotel and pedestrian laneway of bars, restaurants and boutique shopping on land it owns in the Nelson and Hobson Streets block, expanding the SKYCITY Entertainment Precinct. More>>

ALSO:

Igniting The Spark: Bringing The Digital Enabler To Life

Changing a name is, relatively speaking, the easy part of a re-invention. Changing a culture, getting all the ducks in a row, turning yourself inside-out to become customer-inspired is a much bigger challenge. More>>

ALSO:

Ebola And NZ: Targeted Screening At Airport But Risk Low

The risk of any cases of Ebola in New Zealand remains very low, but health and border authorities are well prepared... anyone arriving in New Zealand who in the last three weeks has visited countries affected will be screened for symptoms of the disease. More>>

ALSO:

Scoop Business: Brewer Seeking Crowd-Funding Cancels Shareholders’ Dividends

Shareholders in Renaissance Brewing company, the first business to seek equity through crowd-funding in New Zealand, have cancelled their claim on $147,000 of accumulated earnings “to make Renaissance a more attractive investment opportunity.” More>>

ALSO:

It's Spark Now:
Why Telecom Wanted To Change

New Zealand led the world when Chorus demerged from Telecom. It gave us a telecommunications industry structure where the network is completely separated from the products and services it delivers. The changes brought about a new market dynamic and it dramatically changed Telecom’s role. More>>

ALSO:

Glass Half Empty: Dairy Prices Fall To Lowest Since 2012

Dairy product prices slumped to the lowest level since October 2012 in the latest GlobalDairyTrade auction, paced by whole milk powder and cheddar. More>>

ALSO:

Get More From Scoop

 
 
Computer Power Plus

Standards New Zealand

Standards New Zealand
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news