Marlborough Forest Industry Association



    Environment - Climate

    Marlborough's climate varies widely from temperate rainforest in parts of the Marlborough Sounds through to more arid areas such as the Awatere Valley and Marlborough's east coast. The long-term rainfall average is 649mm per annum, but it is not uncommon for Blenheim to have at least 284 days of the year with less than 1mm of rain.

    Production forestry is concentrated in the higher rainfall areas. It is important to carefully consider rainfall and the selection of timber species before embarking on a forestry investment.

    Blenheim Rainfall Averages and Range
    (Marlborough Research Centre)

     

    Rainfall (mm)
    (1980/2004)
    Range

    July

    67.9

    16.7 

    176.9

    Aug 56.2 11.8 171.6
    Sept 56.0 14.8 125.7
    Oct 57.6 15.2 150.6
    Nov 56.2 8.3 154.6
    Dec 49.2 3.0 123.7
    Jan 47.1 2.2 158.4
    Feb 49.3 0.9 128.7
    Mar 44.4 4.7 103.5
    Apr 46.2 1.0 163.4
    May 54.2 20.8 118.9
    June 61.0 7.4 125.0

    Blenheim Mean Daily Maximum and Minimum Temperatures

      Max Min
    Summer (Dec - Feb) 23º 12º
    Autumn (Mar - May) 19º
    Winter (Jun - Aug) 14º
    Spring (Sep - Nov) 18º
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