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Author Topic: NZ weather summary April 1976  (Read 1795 times)

Offline Rwood

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NZ weather summary April 1976
« on: February 12, 2012, 08:51:10 PM »
April 1976: During April barometric pressures were higher than usual over and to the south of the South Island but rather low to the north. There was an unusually high frequency of easterly winds, causing cloudy, wet conditions in eastern and some northern districts of the North Island. On the other hand, the dry weather which had affected a considerable area of Otago and Southland since the beginning of the year persisted in April, affecting also parts of South Canterbury.

Rainfall: Rainfall was below normal in the South Island except in parts of Nelson and Marlborough. The deficiency amounted to 25-50% in most areas, but it was more than 50% over Otago and Southland. Rainfall was also below normal in southern and some western districts of the North Island and in Auckland and parts of Waikato. It was more than 50% wetter than normal east of a line from Kawerau to Napier, and also over a considerable part of Northland. From Opotiki and Gisborne eastward, totals were more than double the normal. Over the greater part of Otago the rainfall from 14 February to 28 April, a period of 75 days, has been very low, ranging from 10 to 30mm. Milford Sound had very little rain for most of the month, but received 408mm over the period 25-29 April.

Some monthly totals (mm): Oamaru Aero 17, Roxburgh 9, Milton 28; Whangarei 250, Waihi 219, New Plymouth 162, Ruatoria 448, Gisborne 196, Wairoa 184.

Temperatures:  From Tokoroa and Tauranga northward and also on the West Coast temperatures were above normal by 1/2 to 1C. Else where they were close to normal.
East of the ranges in the South Island the warmest days were the 3rd, 7th, 26th and 29th; in Otago and Southland the coldest day was the 30th.

27.0C maximum at Orari on the 26th, -7.0C minimum at Molesworth on the 20th.

Sunshine:  In Northland and east of the North Island ranges sunshine was below normal by up to 55 hours. However, the southern half of the South Island was favoured with up to 40 hours above normal sunshine.

[Some totals: Kaitaia 135, Dargaville 97, Whangarei 100, Auckland 147, Tauranga 162, Whakatane 182, Taupo 169, Te Kauwhata 151, Hamilton 141, Taumarunui 137, New Plymouth 197, Masterton 138, Dannevirke 120, Gisborne 112, Napier 137, Paraparaumu 180, Kairanga 171, Palmerston North 138, Levin 153, Wellington 166, Manaia 164, Wanganui 156, Westport 156, Hokitika 152, Greymouth 140, Haast 147,  Riwaka 204, Nelson 212, Blenheim 206, Grassmere 181, Kaikoura 166, Mt Cook 145, Mt John 220, Methven 174, Christchurch 163, Tekapo 200, Timaru 146, Oamaru Aero 170, Omarama 207, Palmerston 166, Dunedin 158, Te Anau 145, Queenstown 175, Alexandra 200, Gore 137, Invercargill 121, Raoul Is 111 (2nd lowest)].

Sources: NZ Met. Misc. pub. 107 (Climatological table, NZ Gazette) and NZ Met. Misc. pub. 109 (Meteorological Observations) - additional comments by the poster.




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