A typical August from my records:

  • An average temperature of 8.0C.
    • Maximum temperature expected about 21C.
    • Minimum temperature expected about -2C.
    • Six air frosts - air temperature 0C or below are recorded.
    • Five days fail to reach or exceed 10C.
    • Eight days are expected to reach or exceed 15C.
    • One day is expected to reach or exceed 20C.
  • Wind run would be around 3880km with the windiest day expected to have a wind run of 315km.
    • Maximum wind gust would be in the region of 50km/h.
  • There would be rain on 11 days with the monthly total of around 45mm.


Rain totals for the month and year along with temperature and wind comparisons can be found here.

August Daily Observations
TemperatureWindRainfallBarometer
DateMinMaxMeanMean
(Km/h)
Gust
(Km/h)
Run (km)Prevailing Dir10 Minute Max (mm)Total (mm)Min (hPa)Max (hPa)Change (hPa)
1 -.2.2 11.2 4.9 3.3 25 75 East Nth East 0 0 1015.4 1020.9 -5.5
Morning frost, sunny with a few clouds and a light NE wind.
2 6.4 20.3 12.2 5.3 39 121 East Nth East 0 0 1006.5 1015.3 -8.8
Variable cloud NE wind turning mild nor'west in the afternoon.
3 3.9 19.0 12.2 8.0 54 182 North Nth West 0 0 1004.7 1019.2 -14.5
Mild and sunny with northerly winds.
When it comes to the weather and rain, July was an 'extreme month'
4 3.3 17.7 9.9 3.2 32 86 East Nth East 0 0 1013.7 1019.9 -6.2
Mostly cloudy with north to NE winds.
5 5.4 17.0 13.0 8.5 43 192 East Nth East 0 0 998.2 1016.4 -18.2
Overcast with north to NE winds.
No sunshine, snow and sleety showers: 'Bitterly cold' weather coming to Canterbury
6 9.9 18.1 13.8 3.0 20 67 East Nth East 0.4 3.2 992.7 998.3 -5.6
Cloudy with variable breezes tending NE, showers from afternoon.
7 4.3 18.7 8.5 6.6 50 151 South Sth West 1.0 5.8 994.2 1017.0 +22.8
Sunny intervals in the morning, a cold southerly change in the afternoon with showers.
8 2.8 8.6 4.7 1.6 24 37 South Sth West 0 0 1017.2 1026.7 +9.5
Cloudy and cold with a few sunny intervals around midday. Light southerly breezes.
Roads reopen after snow in the South, cold front heads north
9 1.5 8.5 4.5 3.5 20 81 South Sth West 0 0 1019.7 1026.1 -6.4
Cloudy and cold with a few sunny intervals around midday. Light southerly wind.
10 -3.7 9.2 2.3 1.0 19 22 South Sth West 0 0 1015.7 1021.7 +6.0
Morning frost, clear and sunny with light breezes tending southerly.
11 1.9 10.0 5.0 4.3 25 97 South Sth West 0.2 0.8 1021.8 1027.2 +5.4
Overcast with showers clearing later in the afternoon with a few sunny intervals. Cold southerly wind.
12 -3.3 10.0 2.4 1.3 14 28 South Sth West 0.2 0.2 1022.7 1026.5 -3.8
Morning frost, sunny with a few clouds. Light breezes tending southerly.
Cold start to Friday as Aoraki/Mt Cook hits -7.9C and South Island freezes
More sunshine hours than you might think despite record-breaking rainfall
13 -1.4 12.5 4.6 1.6 18 37 South Sth West 0 0 1024.1 1026.8 +2.7
Morning frost, clear and sunny with light breezes tending southerly.
Boiling roads, buckling railways, kiwifruit like a jandal and no red apples - what happens when New Zealand hits 40C
14 -2.6 14.3 4.6 2.0 18 44 East Nth East 0 0 1020.3 1025.8 -5.5
Morning frost, clear and sunny with light winds tending NE.
15 -2.1 11.0 6.0 6.4 36 146 East Nth East 0 0 1023.7 1029.6 -5.9
Morning frost then clouding over with a cool NE wind.
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