August Summary
Coldest August since 2016, below average rainfall and wind run.
(August compared to my records from the past 10 years.)
- This August was the coldest since Aug 2016 with an average temperature of 7.0C, my August 10 year average is 8.0C
- The warmest temperature was 18.6C, my August record is 22.5 set in 2014
- The coldest temperature was -3.9C, the lowest August temperature I've recorded is -4.5C in 2016.
- Eleven days recorded a temperature of 0C or below, my average is 5.
- Three days failed to reach 10C maximum daily temperature, my average is 6.
- Eight days reached or exceeded 15C, my average is 8.
- Wind run was 85% of my average of 4037km with 3451km.
- The windiest August was 2010 with 4732km.
- The barometer recorded record low average pressure for the month with 1002.8hPa. My average is 1012.4hPa.
- Rainfall was 57% of the average expected total of 58.3mm with 33.4mm.
- The wettest August in the past 10 years is 2010 with 110mm.
- The driest August in the past 10 years is 2018 with 18.5mm
| August 2019 Summary Temperature | |
|---|---|
| Mean | 7.0 C |
| Mean Maximum | 13.2 C |
| Mean Minimum | 4.0 C |
| Maximum High | 18.6C (25th) |
| Maximum Low | 7.0 C (21st) |
| Minimum High | 8.4 C (10th) |
| Minimum Low | -3.9 C (5th) |
| Wind Speed and Direction | |
| Maximum Gust | 53 km/h (2nd) |
| Mean | 4.9 km/h |
| Wind Run | 3451 km |
| Max Daily Windrun | 261 km (1st) |
| Prevailing Direction | East North East |
| Barometer | |
| Maximum | 1030.1 hPa (18th) |
| Minimum | 977.4 hPa (22nd) |
| Mean | 1002.8 hPa |
| Max Daily Change | `-26.3 hPa (17th) |
| Rainfall | |
| Days with Measured Rainfall (0.2mm or more) |
9 |
| Max Daily Rainfall | 11.8 mm (10th) |
| Monthly Rainfall | 33.4 mm |
| Humidity | |
| Maximum | 99 % (Several days) |
| Minimum | 40 % (31st) |
| August Daily Observations | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | Wind | Rainfall | Barometer | |||||||||
| Date | Min | Max | Mean | Mean (Km/h) | Gust (Km/h) | Run (km) | Prevailing Dir | 10 Minute Max (mm) | Total (mm) | Min (hPa) | Max (hPa) | Change (hPa) |
| 1 | -0.3 | 10.0 | 5.9 | 11.4 | 44 | 261 | South West | 0.6 | 3.0 | 1001.3 | 1004.0 | -2.7 |
| Early showers clearing by dawn and cloud breaking with sunny intervals in the afternoon. Cold southerly winds. | ||||||||||||
| 2 | -0.7 | 13.2 | 6.5 | 7.6 | 53 | 173 | East Ntn East | 0.6 | 3.8 | 988.5 | 1000.8 | -12.3 |
| Cloud breaking around midday but increasing later in the afternoon with a southerly change in the evening strengthening with showers. | ||||||||||||
| 3 | 3.2 | 12.3 | 8.1 | 8.8 | 52 | 203 | South West | 0.2 | 0.6 | 990.9 | 1004.5 | -13.6 |
| Showers clearing before dawn and the southerly dying away. A mostly sunny day with cool NE winds in the afternoon. Big seas pound the west, snow expected to near sea level |
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| 4 | 0.0 | 9.7 | 4.9 | 3.7 | 39 | 84 | South Sth West | 0.8 | 2.2 | 990.4 | 996.6 | +6.2 |
| Early showers clearing by dawn. Overcast and cool with light NE winds. Sunny intervals in the afternoon, cloud returning in the evening with showers. Maximum temperature recorded at 1:20am. Climate scientist: It's cold now, but NZ region just saw its warmest July Snow hits Canterbury, continues to fall in the south |
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| 5 | -3.9 | 10.7 | 2.3 | 3.4 | 34 | 77 | South Sth West | 0 | 0 | 995.8 | 1006.8 | +11.0 |
| Coldest morning of the year to date. Sunny though some afternoon cloud, cold southerly winds. Lake Tekapo has its warmest ever July |
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| 6 | -3.5 | 13.7 | 3.3 | 1.1 | 15 | 24 | East Nth East | 0 | 0 | 1006.7 | 1010.8 | +4.1 |
| Morning frost, clear and sunny, feeling mild in the afternoon. Light NE breezes. | ||||||||||||
| 7 | -1.5 | 16.3 | 5.5 | 1.0 | 15 | 23 | East Nth East | 0 | 0 | 1004.8 | 1009.5 | -4.7 |
| Some high cloud but mostly sunny and mild in the afternoon. Light breezes tending NE. | ||||||||||||
| 8 | -1.1 | 14.6 | 6.1 | 1.7 | 18 | 38 | East Nth East | 0 | 0 | 994.9 | 1006.5 | -11.6 |
| Some high cloud but mostly sunny and feeling mild in the afternoon. Water shortage: Auckland needs twice as much rain to top up dams |
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| 9 | 3.7 | 14.5 | 9.2 | 3.9 | 28 | 87 | East Nth East | 0 | 0 | 991.7 | 997.0 | +5.3 |
| Sunny morning, Cloud increasing in the afternoon with a cool NE wind. | ||||||||||||
| 10 | 4.9 | 8.4 | 6.6 | 8.4 | 44 | 191 | East | 1.2 | 11.8 | 989.0 | 997.2 | -8.2 |
| Overcast with showers, some heavy. Easterly winds turning cooler southerly from late afternoon. Heavy snow fall forces road closures in South Island amid wild weekend weather for New Zealand |
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| 11 | 3.4 | 10.0 | 6.0 | 6.2 | 26 | 141 | West | 0.2 | 0.4 | 987.8 | 991.8 | -4.0 |
| Overcast with morning drizzle, some sunny intervals in the afternoon. Variable winds tending westerly. | ||||||||||||
| 12 | 2.2 | 9.7 | 5.8 | 3.6 | 22 | 81 | South Sth West | 0.2 | 0.2 | 987.6 | 991.8 | +4.2 |
| Early showers clearing before dawn, morning cloud breaking to a sunny afternoon with cool southerly winds. Wild weather - Fire Service called to dozens of homes, including one struck by lightning Tornados, torrential rain, hail, thunderstorms smash North Taranaki Fast winds high in atmosphere key to thousands of lightning strikes over North Island |
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| 13 | 0.3 | 15.3 | 6.8 | 5,6 | 43 | 128 | East Nth East | 0 | 0 | 987.1 | 998.3 | +11.2 |
| Morning cloud clearing to a sunny afternoon with northerly winds. Cool southerly change in the evening. 'Tornado' hits Auckland waterfront and leaves destruction in its wake Chaotic weather system behind weirdly-shaped hail |
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| 14 | 1.4 | 10.2 | 6.5 | 7.3 | 37 | 167 | South Sth West | 0 | 0 | 998.5 | 1016.7 | +18.2 |
| Some cloud but mostly sunny with cool a southerly wind. | ||||||||||||
| 15 | -2.5 | 11.9 | 4.9 | 3.7 | 20 | 84 | East Nth East | 0 | 0 | 1011.9 | 1016.8 | -4.9 |
| Sunny though high cloud increasing in the afternoon, cool NE wind. | ||||||||||||
| 16 | 5.1 | 15.2 | 9.4 | 3.9 | 34 | 87 | East Nth East | 0 | 0 | 997.3 | 1011.5 | -14.2 |
| Cloudy with some sunny intervals after midday and milder northerly winds. Unsettled, cold August weather may blast into September too |
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| 17 | 1.3 | 10.5 | 6.2 | 8.4 | 44 | 191 | South Sth West | 0.6 | 8.8 | 996.8 | 1023.1 | +26.3 |
| Morning rain clearing by midday with some sunny intervals in the afternoon. Showers returning in the evening. Cold southerly wind. Carnage after 'tornado' rips through Awakino River baches in Taranaki |
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| 18 | -0.1 | 10.7 | 4.2 | 2.2 | 22 | 50 | South Sth West | 0.2 | 1.0 | 1023.3 | 1030.1 | +6.8 |
| Few morning showers clearing by midday then mostly sunny. Southerly breezes turning NE from later afternoon. | ||||||||||||
| 19 | 2.2 | 10.2 | 6.6 | 9.2 | 31 | 210 | East Nth East | 0 | 0 | 1010.8 | 1028.0 | -17.2 |
| Sunny with thin high cloud, cool NE wind. | ||||||||||||
| 20 | 1.0 | 13.4 | 8.5 | 6.1 | 34 | 140 | East Nth East | 0 | 0 | 991.2 | 1010.8 | -19.6 |
| Overcast and cool with NE winds. | ||||||||||||
| 21 | 7.0 | 13.7 | 9.1 | 6.6 | 26 | 150 | East Nth East | 0 | 0 | 981.1 | 991.6 | -10.5 |
| Some morning cloud with light variable breezes. Cloud clearing in the afternoon with a cooler NE wind. | ||||||||||||
| 22 | 4.4 | 14.3 | 8.9 | 3.5 | 30 | 80 | East Nth East | 0 | 0 | 977.4 | 982.6 | +5.2 |
| Variable cloud with light breezes tending NE. | ||||||||||||
| 23 | 3.3 | 14.8 | 8.1 | 6.7 | 34 | 153 | South West | 0 | 0 | 982.6 | 1001.5 | +18.9 |
| Cloud increasing during the afternoon, south to SW winds. Wild weather: 'Beast from the east - rare polar phenomenon that may spell bitter spring |
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| 24 | 2.9 | 14.2 | 8.1 | 4.8 | 27 | 109 | East Nth East | 0 | 0 | 1000.1 | 1004.3 | -4.2 |
| Few clouds but sunny with light southerly winds turning NE in the afternoon. Rain, hail or shine: Forecasting the weather still 'very tricky' |
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| 25 | 3.6 | 18.6 | 10.1 | 2.8 | 33 | 63 | East Nth East | 0 | 0 | 996.6 | 1001.3 | -4.7 |
| Cloud increasing with mild northerly winds in the afternoon turning NE in the evening. | ||||||||||||
| 26 | 4.9 | 13.8 | 8.2 | 5.4 | 35 | 123 | South Sth West | 0.4 | 1.6 | 992.9 | 1009.8 | +16.9 |
| Sunny morning, cloud increasing with rain from early afternoon with a southerly change. Computer weather forecasts may struggle with warming Antarctic skies |
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| 27 | 0.0 | 13.2 | 6.9 | 2.8 | 17 | 63 | East Nth East | 0 | 0 | 1010.1 | 1015.9 | +5.8 |
| Sunny with variable breezes tending NE in the afternoon. | ||||||||||||
| 28 | 0.1 | 15.6 | 8.0 | 2.7 | 24 | 61 | East Nth East | 0 | 0 | 1011.2 | 1016.8 | -5.6 |
| Sunny with some thin high cloud in the afternoon, light NE winds | ||||||||||||
| 29 | 2.1 | 18.3 | 8.9 | 3.6 | 30 | 82 | East Nth East | 0 | 0 | 1007.7 | 1016.0 | +8.3 |
| Morning cloud with a nor'west arch. Cloud breaking in the afternoon with a cooler southerly change later in the afternoon but remaining dry. | ||||||||||||
| 30 | 1.5 | 15.4 | 8.4 | 2.9 | 20 | 67 | East Nth East | 0 | 0 | 1016.2 | 1018.7 | +2.5 |
| Clear and sunny with light Ne wind. Temperature high up in atmosphere above Antarctica sets record |
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| 31 | -0.3 | 17.5 | 8.7 | 2.0 | 18 | 44 | East Nth East | 0 | 0 | 1018.1 | 1024.3 | +6.2 |
| Morning frost then cloudy until late morning. Cloud breaking to a sunny and mild afternoon with light winds tending NE. | ||||||||||||
