August Summary
Above average temperature, below average rainfall and less windy than average.
- August was above my average temperature of 7.4C with 8.4C ,the 4th warmest August I've recorded.
- The warmest August was 2013 with 9.4C, the coolest, 2000 with 5.3C.
- The warmest temperature was 20.2C, the warmest August temperature I've recorded is 23.8 in 2002.
- The coldest temperature was -3.1C. The lowest August temperature I've recorded was in 2000 and 2001 with -4.9C.
- Three air frosts were recorded (air temperature 0C or below), my average is 7.
- Eight days failed to reach or exceed 10C, equalling my average.
- Thirteen days reached or exceeded 15C, my average is 7.
- Two days reached or exceeded 20C, my average is 1. Both 2009 and 2015 also had 2 days that reached or exceeded 20C.
- Wind run was 85% of my average of 4254km with 3595km. The windiest August I've recorded was 2004 with 5654km. The least windy August was 2014 with 3248km.
- The barometer recorded below average pressure for the month with 1010.1hPa. My average is 1012.5hPa.
- Rainfall was 83% of my average expected total of 74mm with 61mm. 2017 rainfall total is above my long term average.
- The driest August is 2005 with 15.4mm, the wettest is 2004 with 172.4mm.
| August 2017 Summary Temperature |
|
|---|---|
| Mean | 8.4 C |
| Mean Maximum | 14.2 C |
| Mean Minimum | 3.4 C |
| Maximum High | 20.2 C (17th) |
| Maximum Low | 10.0 C (28th) |
| Minimum High | 7.8 (14th) |
| Minimum Low | -3.1 C (4th and 22nd) |
| Wind Speed and Direction | |
| Maximum Gust | 50 km/h (12th) |
| Mean | 5.1 km/h |
| Wind Run | 3595 km |
| Max Daily Windrun | 289 km (14th) |
| Prevailing Direction | East North East |
| Barometer | |
| Maximum | 1030.1 hPa (4th) |
| Minimum | 986.8 hPa (17th) |
| Mean | 1010.1 hPa |
| Max Daily Change | +15.8 hPa (21st) |
| Rainfall | |
| Days with Measured Rainfall (0.5mm or more) |
13 |
| Max Daily Rainfall | 31.5 mm (14th) |
| Monthly Rainfall | 61.0 mm |
| Humidity | |
| Maximum | 100 % (Several days) |
| Minimum | 35 % (12th) |
| 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 | 4.1 | 13.3 | 8.0 | 3.5 | 16 | 79 | West | 0 | 0 | 1016.4 | 1024.9 | +8.5 |
| Mostly cloudy with occasional drizzle. Variable light winds tending westerly. | ||||||||||||
| 2 | 2.3 | 9.6 | 5.4 | 2.4 | 22 | 55 | West | 0.5 | 0.5 | 1022.8 | 1025.6 | -2.8 |
| Broken cloud with a few light showers from midday, light winds tending westerly. | ||||||||||||
| 3 | 1.1 | 9.4 | 4.5 | 2.5 | 22 | 58 | South Sth West | 0.5 | 1.0 | 1024.4 | 1028.6 | +4.2 |
| Showers clearing by early morning and cloud breaking with a mostly sunny morning. Cloud returning in the afternoon, cool southerly breeze. | ||||||||||||
| 4 | -3.1 | 9.1 | 3.6 | 3.6 | 24 | 81 | East Nth East | 0 | 0 | 1027.5 | 1030.1 | -2.6 |
| Morning frost. Clear and sunny with a cold NE wind from mid morning. | ||||||||||||
| 5 | 0.9 | 11.2 | 6.2 | 7.5 | 42 | 173 | East Nth East | 0 | 0 | 1018.5 | 1028.6 | -10.1 |
| Morning cloud breaking to mostly sunny afternoon with cool NE winds freshening. | ||||||||||||
| 6 | 7.4 | 18.1 | 10.7 | 7.4 | 32 | 168 | East Nth East | 0.5 | 1.0 | 1008.4 | 1018.3 | -9.9 |
| Early showers clearing by dawn. Cloudy morning with a shower around midday, then a sunny and mild afternoon. Variable winds tending NE. Warmest day since the 12th June. | ||||||||||||
| 7 | 4.6 | 20.0 | 11.7 | 2.7 | 18 | 60 | East Nth East | 0 | 0 | 1012.3 | 1019.7 | +7.4 |
| Sunny and mild in the afternoon. Variable breezes turning NE later in the afternoon. | ||||||||||||
| 8 | 6.7 | 14.2 | 10.2 | 3.6 | 19 | 83 | East Nth East | 0 | 0 | 1006.1 | 1019.0 | -12.9 |
| Overcast with light afternoon showers, light winds tending NE. | ||||||||||||
| 9 | 5.4 | 9.6 | 7.5 | 2.8 | 29 | 64 | South Sth West | 0.5 | 5.5 | 993.8 | 1006.5 | -12.7 |
| Morning mist / fog. Overcast and cool with variable light winds tending southerly. Light rain in the afternoon, heavier showers in the evening. | ||||||||||||
| 10 | 5.2 | 14.6 | 8.2 | 0.7 | 12 | 16 | East Nth East | 0.5 | 0.5 | 990.8 | 994.4 | -3.6 |
| Thick fog clearing by midday, variable light breezes tending NE in the afternoon. 0.5mm of rain from fog condensation. | ||||||||||||
| 11 | 1.6 | 16.6 | 8.4 | 3.7 | 20 | 84 | East Nth East | 0.5 | 0.5 | 991.8 | 995.9 | +4.1 |
| Cloud breaking, variable breezes in the morning turning NE in the afternoon. | ||||||||||||
| 12 | 5.3 | 19.3 | 11.8 | 5.9 | 50 | 135 | North Nth West | 0.5 | 0.5 | 992.1 | 996.3 | +4.2 |
| Mostly sunny with some high cloud at times, mild northerly winds in the afternoon. Late evening shower. | ||||||||||||
| 13 | 4.8 | 16.4 | 10.0 | 4.3 | 39 | 99 | South Sth West | 0.5 | 0.5 | 993.3 | 1005.6 | +12.3 |
| Cloud breaking in the morning with sunny periods for a while. Overcast in the afternoon with showers in the evening. | ||||||||||||
| 14 | 4.1 | 7.8 | 6.0 | 12.6 | 44 | 289 | South West | 1.0 | 31.5 | 1001.8 | 1005.9 | -4.1 |
| Overcast with rain from early morning easing from midday with drizzle into the evening. Cold southerly winds. Maximum temperature recorded at midnight before the rain started. | ||||||||||||
| 15 | 1.0 | 9.9 | 5.5 | 7.4 | 37 | 170 | South West | 0 | 0 | 1000.7 | 1004.2 | +3.5 |
| Cloudy with sunny intervals, southerly winds dying away in the evening. | ||||||||||||
| 16 | 0.3 | 11.4 | 6.2 | 5.6 | 31 | 128 | East Nth East | 0.5 | 0.5 | 996.3 | 1006.6 | -10.3 |
| Some morning cloud then sunny with NE wind. 0.5mm of rain recorded from condensation. | ||||||||||||
| 17 | 9.3 | 20.2 | 14.0 | 8.9 | 36 | 204 | East Nth East | 0 | 0 | 986.8 | 996.5 | +9.7 |
| Cloud clearing to a sunny day with mild northerly winds from later in the morning. | ||||||||||||
| 18 | 3.9 | 19.3 | 10.7 | 2.9 | 16 | 66 | East Nth East | 0 | 0 | 990.0 | 996.4 | -6.4 |
| Morning cloud breaking to a mostly sunny afternoon with light winds tending NE. | ||||||||||||
| 19 | 0.7 | 12.1 | 6.6 | 5.3 | 24 | 121 | South West | 1.5 | 13.5 | 986.9 | 990.5 | +3.6 |
| Morning frost then sunny with high cloud. Cloud increasing from afternoon with a period of rain, heavy at times from late afternoon. Cool southerly winds. | ||||||||||||
| 20 | 6.4 | 9.5 | 7.8 | 11.2 | 35 | 255 | South West | 0.5 | 5.0 | 990.5 | 1000.5 | +10.0 |
| Overcast and cool with drizzle and light rain more frequent from late afternoon. Southerly winds. | ||||||||||||
| 21 | -0.3 | 9.9 | 5.9 | 10.3 | 40 | 237 | South Sth West | 0.5 | 0.5 | 1000.5 | 1016.3 | +15.8 |
| Morning showers clearing. Variable cloud, cool southerly winds. | ||||||||||||
| 22 | -3.1 | 13.9 | 5.0 | 2.3 | 17 | 51 | East Nth East | 0 | 0 | 1016.5 | 1022.8 | +6.3 |
| Morning frost, clear and sunny with light breezes tending NE from mid afternoon. | ||||||||||||
| 23 | 1.8 | 13.8 | 7.6 | 5.0 | 26 | 113 | East Nth East | 0 | 0 | 1020.8 | 1023.7 | -2.9 |
| Clear and sunny, cool NE wind. | ||||||||||||
| 24 | 0.2 | 18.5 | 8.6 | 2.2 | 20 | 50 | South Sth West | 0 | 0 | 1022.2 | 1025.5 | +3.3 |
| Morning frost then clear and sunny with light southerly winds turning NE form mid afternoon. | ||||||||||||
| 25 | 0.5 | 18.1 | 8.5 | 2.3 | 20 | 51 | East Nth East | 0 | 0 | 1022.2 | 1025.4 | -3.2 |
| Morning frost, sunny with light NE winds. | ||||||||||||
| 26 | 3.2 | 15.1 | 8.7 | 1.7 | 15 | 38 | East Nth East | 0 | 0 | 1020.0 | 1024.6 | -4.6 |
| Overcast with high cloud, light NE breezes. | ||||||||||||
| 27 | 3.1 | 18.8 | 11.1 | 4.0 | 26 | 90 | East Nth East | 0 | 0 | 1010.4 | 1019.7 | -9.3 |
| Mild from late morning with variable high cloud, light NE winds. | ||||||||||||
| 28 | 10.0 | 15.5 | 12.3 | 8.4 | 34 | 191 | East Nth East | 0 | 0 | 1003.1 | 1010.2 | -7.1 |
| Variable cloud, cool NE winds. | ||||||||||||
| 29 | 4.0 | 19.9 | 11.1 | 4.3 | 29 | 97 | South West | 0 | 0 | 1005.7 | 1018.2 | +12.5 |
| Some high cloud but mostly sunny and mild from late morning with variable breezes tending south west. | ||||||||||||
| 30 | 6.7 | 14.0 | 9.3 | 2.3 | 17 | 51 | East Nth East | 0 | 0 | 1013.6 | 1017.7 | -4.1 |
| Overcast and cool with variable light winds tending NE in the afternoon. | ||||||||||||
| 31 | 7.2 | 10.6 | 8.7 | 9.9 | 34 | 225 | South West | 0 | 0 | 1013.5 | 1017.7 | +4.2 |
| Overcast with drizzle at times, southerly winds. | ||||||||||||
