On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Monthly

Monthly climate summaries from December 2001 to the present.

Monthly climate summaries from December 2001 to the present.

Issues

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    October 2003

    Saturday, 1 November 2003
    Rainfall: Near or above average over much of the North Island; below average in Hawke’s Bay, Westland, Fiordland, Canterbury, Otago and Southland
    Temperatures: Below average temperatures over much of the North Island, and the eastern South Island (Marlborough, Canterbury and Otago)
    Sunshine: above average in most regions, especially Southland
    October was a month of mixed weather. It was wet and rather unsettled in many areas during the first two weeks. However, mainly dry settled conditions prevailed for the rest of the month.
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    September 2003

    Wednesday, 1 October 2003
    Rainfall: Extremely high in many areas, especially in Taranaki, King Country, Wanganui, Gisborne, Hawke’s Bay, Wairarapa, Kaikoura, Canterbury and north Otago; dry in Dunedin and South Otago
    Temperatures: Above average temperatures over much of the North Island, especially Northland, Auckland, Bay of Plenty, Gisborne and Hawke’s Bay; below average in the southwest of the South Island especially south Westland, Fiordland and Central Otago
    Sunshine: Below average in Northland, Gisborne, and Central Otago
    September was a month of extremes.
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    August 2003

    Monday, 1 September 2003
    Sunshine: Well above average in Southland and Westland
    Rainfall: Less than half average in many inland and western regions, especially Manawatu, Horowhenua, and inland south Canterbury; wet in some areas exposed to the east, especially central Hawke’s Bay
    Temperatures: Average or above average temperatures in many areas, colder in parts of Central and South Otago
    August was more settled, and much drier than average in many inland and western regions, with wetter than usual conditions in some areas exposed to the east, and colder than usual conditions in parts
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    July 2003

    Friday, 1 August 2003
    Sunshine: More than normal sunshine across the country, except for Auckland
    Rainfall: Below average in most regions, especially Bay of Plenty, Marlborough and Nelson; wet along the Southland coast
    Temperatures: Below average in most places and frostier than normal in many areas
    July was colder, sunnier, and more settled and frosty than average, with well below average rainfall in most areas, especially parts of Marlborough and Nelson where July was the driest in more than 60 years of measurement. A severe snowstorm swept the country over 4–5 July.
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    June 2003

    Tuesday, 1 July 2003
    Temperatures: Warmest June on record
    Rainfall: Very dry in Canterbury, and significantly below average rainfall in parts of Gisborne and Hawke’s Bay; extremely wet in Nelson with above average rainfall in all western regions from Waikato to Fiordland
    Sunshine: Sunny in most eastern regions, below average totals in the west of the North Island from Northland to Manawatu
    June was the warmest ever recorded in New Zealand since records began over 150 years ago, with mean temperatures 2.0°C above normal.
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    May 2003

    Sunday, 1 June 2003
    Sunny with well below average rainfall in Waikato, Wanganui, Manawatu, Wellington, Wairarapa, Westland, Fiordland, Marlborough, Alpine areas, Otago and Southland
    Significant soil moisture deficits persist in Wanganui, Manawatu, Horowhenua, South Canterbury and Central Otago
    Above average rainfall in Bay of Islands, Coromandel, and north and central Canterbury
    Warmer in parts of Auckland, Bay of Plenty, Waikato, and Buller, but colder in Wellington, Wairarapa, Marlborough, Canterbury, Otago and Southland
    May was much warmer than average over all of New Zealand, and rainfa
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    April 2003

    Thursday, 1 May 2003
    Sunny with well below average rainfall in Waikato, Wanganui, Manawatu, Wellington, Wairarapa, Westland, Fiordland, Marlborough, Alpine areas, Otago and Southland
    Significant soil moisture deficits persist in Wanganui, Manawatu, Horowhenua, South Canterbury and Central Otago
    Above average rainfall in Bay of Islands, Coromandel, and north and central Canterbury
    Warmer in parts of Auckland, Bay of Plenty, Waikato, and Buller, but colder in Wellington, Wairarapa, Marlborough, Canterbury, Otago and Southland
    April was a month of regional contrasts.
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    March 2003

    Tuesday, 1 April 2003
    Exceptionally dry in Wanganui, Manawatu, Wairarapa, and Otago
    End of month rainfall brings relief to areas in extreme soil moisture deficit in Canterbury, but Wanganui, Manawatu, Horowhenua, Marlborough and Otago still in significant deficit
    Record high rainfall in parts of Northland
    The warmest month of the year with record high mean temperatures in inland Otago
    The sunniest March ever in Kapiti, Wellington, and Dunedin, and extremely sunny over the rest of central and southern parts
    For much of New Zealand, March was a month of new records produced by very settled, e
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    February 2003

    Sunday, 2 March 2003
    Below average rainfall in Nelson, and many North Island areas
    Significant soil moisture deficits affects many regions
    High end-of-month rainfall in eastern Northland, Coromandel and parts of Gisborne – floods at Paeroa
    Extremely sunny in the east
    Below average temperatures persist in most regions
    Unseasonably early frosts
    Waikato, Taranaki, and Nelson all received less than a quarter (25 percent) of their normal February rainfall last month, while less than half (50 percent) of average rain fell in northwestern parts of Northland, and most central and southwestern
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    January 2003

    Saturday, 1 February 2003
    Above average rainfall in the north of the North Island, but dry elsewhere
    Significant soil moisture deficits now in Manawatu, Horowhenua, Gisborne and Hawke’s Bay
    Cool
    January was a dry month for much of the country. Rainfall was less than half of normal in the southwest of the North Island and Hawke’s Bay, and about a quarter in the Horowhenua. Only half normal rainfall also occurred in central Marlborough.
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    December 2002

    Thursday, 6 January 2003
    Below average rainfall persists in eastern Northland and Bay of Plenty, dry in Canterbury and eastern Otago
    Significant soil moisture deficits in eastern Marlborough, Canterbury and most of Otago
    Above average rainfall in parts of Taranaki and Marlborough, and the southwest of the South Island
    Sunny in the east of the South Island and Hawke’s Bay
    For much of the country, December was a sunnier, drier than average month in many eastern regions and cloudier and wetter than usual in some western districts.
    Rainfall was above average for the first time in six mont
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    November 2002

    Sunday, 1 December 2002
    Windy and cold, below average temperatures persist
    Below average rainfall persists in Marlborough and Bay of Plenty; low rainfall also in Northland
    Wet in mid and north Canterbury
    Sunny in Northland and Westland
    For much of the country, November was a cold and windy month, the first three weeks being dominated by almost relentless winds from the south and west. Temperatures, as with October, continued well below average, with little of the normal spring warming until the end of November, due to frequent periods of cold south-westerlies and southerlies.
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    October 2002

    Friday, 1 November 2002
    The coldest October since 1982, with below average temperatures almost everywhere
    Extremely sunny with below average rainfall in many regions
    Wet in the east north of Gisborne and in the far south
    October received more than the usual number of cold snaps, keeping temperatures well below normal in many areas. Ground frosts occurred with twice their normal frequency in inland parts of Bay of Plenty and Canterbury.
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    September 2002

    Tuesday, 1 October 2002
    Record strong westerlies for September
    In many eastern areas: sunny and unusually warm with below average rainfall
    In the west: high rainfall, cloudy, wet and unsettled
    Very strong west to north westerlies during September resulted in dry, sunny, windy, and unusually warm conditions, with 75 percent (three quarters) or less of normal rainfall, in many eastern areas of both islands. In contrast, wet, cloudy and unsettled conditions occurred on the West Coast, including coastal Southland, Southern Lakes and alpine areas, as well as Taranaki and King Country.
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    August 2002

    Sunday 1 September 2002
    Average or below average rainfall in many regions
    Wet in the southwest of the South Island
    Mild overall in most regions
    Sunny in the south and east of the North Island and northwest of the South Island
    Much drier conditions than normal occurred in the northeast of the South Island in August for the second consecutive month accompanied by unsettled and wetter than normal conditions in the southwest of the South Island.
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    July 2002

    Thursday 1 August 2002
    Well below average rainfall over much of the South Island
    Average or above average rainfall over the North Island
    Rather mild in the North Island and northern South Island
    Rather sunny in the far south
    Above average to average rainfall in the North Island was accompanied by very dry conditions in much of the South Island in July. The driest regions in the South Island were Nelson, Marlborough, Canterbury and Central Otago, with totals less than 25 percent (quarter) of average.
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    June 2002

    Monday 1 July 2002
    One of the warmest Junes on record despite a period of freezing wintry conditions and record low temperatures in the South Island
    Wet in many regions, especially parts of Coromandel and the West Coast
    Below average rainfall in Gisborne
    Sunny in parts of the east, very cloudy in northern and western regions
    Floods and heavy snowfall
    In spite of the weather extremes of heavy snowfall and severe frost in the South Island and torrential rain in both islands, the month of June was about as warm as it gets at that time of year on the basis of historical records going back to th
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    May 2002

    Monday 3 June 2002
    Exceptionally mild for much of the time, but wintry conditions toward the end of the month, especially in the south
    Very dry in the east
    Above average rainfall in the far north and south
    Very sunny in Gisborne and Wellington
    May was a month of autumnal contrasts across much New Zealand. Overall temperatures were well above average during the first three weeks, even summer-like on a few days. The month’s major weather events were associated with a deep depression that tracked across the South Island on the 23rd and then became slow moving to the east.
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    April 2002

    Wednesday, 1 May 2002
    Drier in western regions, above average rainfall in parts of Bay of Plenty and the eastern South Island
    Warm and sunny in the west of the South Island, average or below average temperatures and sunshine elsewhere
    April brought large contrasts between western and eastern areas of New Zealand. Below average rainfall with above normal temperatures and abundant sunshine occurred in the west, particularly on the South Island West Coast. Above average rainfall and below average sunshine featured in the east of the South Island.
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    March 2002

    Monday, 1 April 2002
    Very dry in many eastern regions
    Sunny almost everywhere
    Near average temperatures for most regions
    In contrast to summer, low rainfall, especially in eastern regions, along with sunny conditions almost everywhere, were the main features of the climate during March.
    It was very dry in the east from Gisborne to Otago, including Bay of Plenty, Taupo and Nelson, where many sites recorded 50 percent (half) or less of their normal March rainfall. Gisborne Airport’s March rainfall was only 12 mm, the 3rd equal lowest there for March in more than 95 years.
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    February 2002

    Friday, 1 March 2002
    Wet in the lower half of the North Island and North Canterbury
    Dry in the northern half of the North Island and parts of the South Island West Coast
    Warm and sunny on the West Coast of the South Island
    Cool and cloudy in the east
    A contrasting mixture of weather conditions featured in the North and South Islands during February. Many districts on the lower half of the North Island, Taranaki and Hawke’s Bay received about twice their normal rainfall. Rainfall was also above average in north Canterbury and coastal Southland.
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    January 2002

    Friday, 1 February 2002
    Many thunderstorms and high-rainfall / flood-producing events
    Extremely wet in Canterbury and the east, low rainfall in southern New Zealand
    Warm on the West Coast, cool in Central Otago
    Sunny in Taranaki and the west and south of the South Island
    Low sunshine in Canterbury and coastal Otago
    Thunderstorms with lightning, frequently accompanied by torrential rain that resulted in localised flooding, were a feature of the January climate.
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    December 2001

    Wednesday 2 January 2002
    In the North Island very wet with warm nights
    Record low sunshine hours in many regions
    Dry in Canterbury
    New rainfall records were set in many areas during a warm but unsettled December. Many northern and eastern North Island areas received at least twice their average December rainfall, with some locations establishing new records. Records were set at Kerikeri, Motu, Mahia, Turangi, Whakatu near Hastings, Masterton and Lake Rotoiti in the Nelson Lakes district.
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    November 2001

    Saturday 1 December 2001
    Wet in many regions, especially central New Zealand
    Warm in some northern and western areas
    Cool in the eastern South Island, especially inland
    Cloudy in Bay Of Plenty, Wellington and some eastern areas
    Variability was a feature of November climate and weather. It was an unsettled month in many central New Zealand areas. Marlborough went from drought to deluge, with rainfall at least double normal. Wellington and parts of Buller also had twice the average November rainfall. It was also wetter than usual in many other regions.