April was a wet and warm month for the North Island, with more than twice the normal rainfall in the majority of locations, even as temperates rose markedly above average.

The majority of the North Island saw temperatures climb by between 0.51 degrees Celsius and 1.2C, while at the same time some areas saw triple the normal rainfall, according to Niwa figures.

The biggest culprits behind the rainfalls were the remnants of Cyclone Debbie in early April and ex-Cyclone Cook from April 12-13, both of which brought flooding to much of the North Island and parts of the South Island.

Whangaparaoa, north of Auckland; Te Puke in Bay of Plenty; and Martinborough in Wairarapa experienced the wettest April on record. In the same period, Te Puke also had its warmest April since records began in 1973.

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Warkworth, Taupo, Hawera, Ohakune and Waiouru were among those areas that received their highest rainfall on record during April.

A variety of areas had their second-wettest April, including Hamilton, Dannevirke, Palmerston North, Levin and Stratford.

Upper Hutt had its third wettest April, and Wellington, Dunedin, and areas of Auckland had their fourth.

Only northern and western Northland received near normal rainfall in the North Island.

The South Island was more of a mixed bag, with the northern and eastern regions receiving twice the normal rainfall.

The West Coast of the South Island saw more typical amounts of rain, and Southland and Queenstown-Lakes bucked the trends with rainfall below the norm for this time of year.