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Author Topic: NZ weather summary May 1985  (Read 3269 times)

Offline Rwood

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NZ weather summary May 1985
« on: April 21, 2012, 12:48:16 PM »
May 1985:   Dry in most regions, with mean temperatures below in the north of the North Island, but about average elsewhere. Over northern parts of the North Island easterly quarter winds prevailed, with southeasterlies the most frequent since 1956. Over the South Island southwesterlies were a little more frequent than usual. Very high winds occurred in the Wellington and Kaikoura areas during a severe southerly storm from the 14th to the 16th. Winds gusted to 193kph at Beacon Hill, and to 139kph at Kaikoura, on the 15th. Damage was reported in suburbs adjacent to Cook Strait and air and ferry transport was disrupted. Very dry conditions continued in parts of Canterbury and Otago until the 13th. Some light snow fell in parts of Otago during the 13th-16th. Mean sea level pressures were above average over the whole country, with Christchurch and Invercargill 10hPa above normal. An unusually intense anticyclone to the east of the South Island brought a reading of 1043.6 hPa at Christchurch Airport on the 29th.

Rainfall:
Rainfall was below average for much of the country except in parts of Northland, Gisborne, and in Southland. Very dry conditions were alleviated a little in North Otago and South Canterbury on the 14th-15th with the first substantial rainfall since February. Low percentages for the month included New Plymouth Airport and Alexandra (15%), Ohakea (16%) and Farewell Spit (20%). During the 22nd-23rd very heavy falls occurred in parts of Auckland and southern Northland, with some flooding, due to a stationary depression near Cape Reinga. Some 24-hour falls were 200mm (Warkworth) and 141mm (Auckland City). Warkworth had 193%, Auckland City 164% and Gisborne 165% of the normal monthly rainfall, Auckland City’s reading being the highest for May since records started in 1963.

Some totals: Leigh 271mm, Owairaka 250mm; Ohakea 14mm, Appleby 11mm, Oamaru Aero 14mm, Alexandra 6mm.

Temperatures: Mean temperatures were about normal over the North Island except for areas north of Hamilton where they were 1C below normal. In some Auckland and southern Northland locations night minima were 1.5C below normal. Over the South Island mean temperatures were near normal, apart from Otago where they were 0.5C colder and night time temperatures were 0.5C-1.0C colder than average. On the West
Coast temperatures were warmer by about 1.0C.

24.7C
maximum at Christchurch Aero on the 7th, -7.6C minimum at Mt Cook on the 27th.

Sunshine:  Sunshine was above average over most of the country apart from Gisborne, Hawkes Bay, Wairarapa and Marlborough. Among stations with greatest departures were Hokitika (+54 hours, highest since 1943), Auckland City (+51, record high from 1930), Gisborne (-28) and Blenheim (-32).

[Some totals: Kaitaia 170, Dargaville 152, Waitangi 141, Whangarei 120, Leigh 159, Auckland 190, Tauranga 189, Whakatane 176, Rotorua 142, Taupo 129, Auckland Aero 194, Hamilton 160, New Plymouth 163, Masterton 92, Dannevirke 84, Gisborne 113, Napier 123, Palmerston North 109, Levin 131, Wellington 123, Stratford 125, Wanganui 151, Westport 159, Arapito 150, Hokitika 176, Greymouth 148, Nelson 168, Blenheim 134, Kaikoura 123, Mt Cook 93, Methven 117, Christchurch 134, Timaru 129, Oamaru Aero 140, Palmerston 128, Dunedin 117, Te Anau 76, Queenstown 95, Cromwell 88, Alexandra 103, Gore 110, Invercargill 97].

Sources: NZ Met. Misc. pub. 107 (Climatological table, NZ Gazette) and NZ Met. Misc. pub. 109 (Meteorological Observations).

« Last Edit: April 21, 2012, 01:08:16 PM by Rwood »



Offline Rwood

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Re: NZ weather summary May 1985
« Reply #1 on: May 09, 2015, 08:45:30 AM »
Unusual for Auckland and other northern places, with the combination of high rainfall and a very sunny month. The Wellington storm was a standout locally because the autumn - all of March & April, and nearly all of May - was marked by very quiet weather and low wind speeds.


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