isothermalsection

Author Topic: NZ weather summary July 1971  (Read 1527 times)

Offline Rwood

  • Moderator
  • Hero Member
  • *****
  • Posts: 1297
  • Country: nz
  • Karma: 243
  • Gender: Male
NZ weather summary July 1971
« on: March 17, 2012, 12:56:15 PM »
July 1971: Pressures were unusually high to the south of the country in July, with a higher mean pressure at Campbell Island than at Kaitaia. This resulted in an exceptionally high frequency of winds from an easterly quarter, as in previous months back to November, with considerable cloud and rain in some eastern districts but mainly low rainfall and fairly sunny conditions elsewhere. Farming conditions were good except in some cases in eastern districts of the North Island and Northland. Depressions over Northland caused severe gales there on the 2nd and 26th, and these also occurred in other northern districts on the 2nd.

Rainfall:
Rainfall was below normal over the greater part of the country by about 30%. In parts of Southland it was less than 1/4 of the normal value. It was above normal in eastern areas from East Cape to Ashburton, in most of Coromandel with parts of Bay of Plenty, and in northern Northland. An area on the East Coast around Tokomaru Bay had a surplus of more than 50%.

204mm rainfall at Cape Reinga, 3mm at Tekapo.

Temperatures:  Temperatures were mainly close to normal. However, in some coastal areas of Gisborne and Hawkes Bay they were 1C warmer than normal. This was the first month since September 1970 for which temperatures over the country were not well above normal. Snow affected many parts of the South Island on the 14th.

20.3C
maximum at Wairoa on the 27th, -11.0C minimum at Molesworth on the 16th.

Sunshine:  The North Island, excluding Northland, eastern districts, and parts of Wellington, was favoured with 40-65 hours sunshine above normal. Parts of the West Coast and Otago were similarly favoured. Relatively high sunshine was recorded at Ohakune (147 hours) and Levin (163 hours). The only areas with sunshine below normal, by 15-40 hours, were parts of Hawkes Bay and Wairarapa besides Banks Peninsula.

[Some totals:  Kaitaia 150, Kerikeri 137, Whangarei 134, Leigh 139, Auckland 159, Tauranga 202, Whakatane 193, Taupo 161, Opotiki 194, Auckland Aero 172, Hamilton 173, New Plymouth 169, Masterton 92, Gisborne 128, Napier 126, Wairoa 98, Paraparaumu 155, Ohakea 174, Kairanga 167, Palmerston North 133, Levin 163, Wellington 115, Stratford 175, Ohakune 147, Wanganui 153, Takaka 154, Westport 151, Hokitika 159, Greymouth 151, Haast 140, Riwaka 157, Nelson 164, Blenheim 153, Grassmere 151, Kaikoura 121, Mt Cook 95, Mt John 152, Methven 141, Christchurch 114, Tekapo 126, Timaru 130, Waimate 126, Omarama 135, Palmerston 151, Dunedin Aero 151, Dunedin 141, Oamaru 135, Queenstown 101, Alexandra 111, Invercargill 105, Raoul Is 150, Campbell Is 11, Chatham Is 130 {highest}]

Sources: NZ Met. Misc. pub. 107 (Climatological table, NZ Gazette) and NZ Met. Misc. pub. 109 (Meteorological Observations).
« Last Edit: May 31, 2019, 07:50:53 PM by Rwood »



Offline Rwood

  • Moderator
  • Hero Member
  • *****
  • Posts: 1297
  • Country: nz
  • Karma: 243
  • Gender: Male
Re: NZ weather summary July 1971
« Reply #1 on: May 31, 2019, 08:01:18 PM »
Minor updates. A most unusual month regarding pressure distribution.


Share via twitter

xx
NZ weather summary May 1971

Started by Rwood

3 Replies
1791 Views
Last post May 01, 2019, 03:45:18 PM
by Rwood
xx
NZ weather summary January 1971

Started by Rwood

3 Replies
1785 Views
Last post December 13, 2018, 03:14:51 PM
by Rwood
xx
NZ weather summary April 1971

Started by Rwood

4 Replies
1657 Views
Last post June 13, 2019, 08:23:39 AM
by ato2
xx
NZ weather summary June 1971

Started by Rwood

4 Replies
1778 Views
Last post May 28, 2019, 08:23:43 AM
by ato2
xx
NZ weather summary October 1971

Started by Rwood

1 Replies
1510 Views
Last post June 11, 2019, 05:01:04 PM
by Rwood