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Table 29: Projected changes for each regional council area in seasonal and annual average temperature (in °C)

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  Summer Autumn Winter Spring Annual

Northland

1990-2030s

0.1 to1.2

0.1 to 1.4

0.3 to 1.6

0.2 to 1.2

0.2 to 1.3

1990-2080s

Auckland

1990-2030s

0.5 to 3.9

0.1 to1.2

0.5 to 4

0.1 to 1.3

0.8 to 4.2

0.3 to 1.6

0.6 to 3.8

0.2 to 1.2

0.6 to 4

0.2 to 1.3

1990-2080s

Waikato

1990-2030s

0.4 to 3.8

0.0 to 1.2

0.4 to 3.9

-0.1 to1.3

0.8 to 4.0

0.3 to 1.6

0.5 to 3.6

0.1 to 1.2

0.6 to 3.8

0.1 to 1.4

1990-2080s

Bay of Plenty

1990-2030s

0.2 to 3.8

0.0 to 1.2

0.3 to 3.9

0.0 to 1.3

0.8 to 4.1

0.4 to1.6

0.4 to 3.6

0.2 to 1.2

0.4 to 3.8

0.2 to 1.3

1990-2080s

Taranaki

1990-2030s

0.3 to 3.8

0.0 to1.2

0.4 to 3.9

0.0 to 1.3

0.8 to 4.2

0.4 to 1.6

0.4 to 3.6

0.1 to 1.2

0.5 to 3.8

0.1 to 1.3

1990-2080s

Manawatu/Wanganui

1990-2030s

0.2 to 3.6

-0.1 to 1.2

0.4 to 3.9

-0.1 to 1.3

0.8 to 4.0

0.3 to 1.7

0.4 to 3.4

0.1 to 1.2

0.4 to 3.7

0.1 to 1.3

1990-2080s

Hawke's Bay

1990-2030s

1990-2080s

0.1 to 3.7

-0.1 to 1.3

0.3 to 3.9

0.3 to 3.9

0.1 to 1.3

0.5 to 3.8

0.6 to 4.2

0.4 to 1.6

0.8 to 4.0

0.3 to 3.4

0.2 to 1.3

0.5 to 3.3

0.3 to 3.8

0.2 to 1.4

0.5 to 3.8

Gisborne

1990-2030s

1990-2080s

0.0 to 1.3

0.4 to 3.9

0.1 to1.3

0.5 to 3.8

0.4 to 1.6

0.8 to 4.1

0.2 to 1.3

0.6 to 3.4

0.2 to 1.4

0.6 to 3.8

Wellington

1990-2030s

1990-2080s

-0.2 to 1.2

0.1 to 3.7

0.1 to 1.2

0.5 to 3.7

0.4 to 1.7

0.8 to 4.0

0.1 to 1.2

0.4 to 3.3

0.1 to 1.3

0.5 to 3.6

Nelson

1990-2030s

1990-2080s

0.0 to 1.2

0.2 to 3.4

0.1 to .2

0.3 to 3.6

0.3 to 1.6

0.7 to 3.6

0.1 to 1.2

0.4 to 3.3

0.1 to 1.3

0.4 to 3.5

Marlborough

1990-2030s

1990-2080s

-0.2 to1.3

-0.2 to 3.5

0.1 to 1.2

0.4 to 3.6

0.3 to 1.8

0.9 to 4.1

0.0 to 1.3

0.2 to 3.3

0.1 to 1.4

0.4 to 3.5

West Coast

1990-2030s

1990-2080s

-0.1 to 1.1

-0.1 to 3.1

-0.2 to 1.2

0.1 to 3.7

0.2 to 1.6

0.6 to 3.9

0.0 to1.1

0.2 to 3.3

0.1 to 1.2

0.2 to 3.5

Canterbury

1990-2030s

1990-2080s

-0.2 to 1.3

0.0 to 3.3

0.1 to 1.1

0.4 to 3.5

0.3 to 1.8

0.8 to 3.9

0.0 to 1.3

0.3 to 3.1

0.2 to 1.4

0.5 to 3.4

Otago

1990-2030s

1990-2080s

-0.2 to 1.2

-0.1 to 2.7

0.0 to 1.1

0.4 to 3.3

0.2 to 1.8

0.7 to 3.5

0.0 to 1.2

0.2 to 3.0

0.1 to 1.3

0.4 to 3.1

Southland

1990-2030s

1990-2080s

-0.2 to 1.2

-0.1 to 2.6

-0.1 to 1.1

0.1 to 3.4

0.2 to 1.8

0.7 to 3.5

0.0 to 1.1

0.1 to 3.1

0.1 to 1.3

0.2 to 3.2

Source: Preparing for Climate Change, Ministry for the Environment, 2004