September 2011 Summary Temperature |
|
---|---|
Mean | 9.1 C |
Mean Maximum | 15.0 C |
Mean Minimum | 3.6 C |
Maximum High | 22.5 C (27th) |
Maximum Low | 10.0 C (30th) |
Minimum High | 10.8 C (15th) |
Minimum Low | -1.5 C (26th) |
Wind Speed and Direction | |
Maximum Gust | 49 km/h (1st) |
Mean | 6.0 km/h |
Wind Run | 4150 km |
Max Daily Windrun | 283 km (22nd) |
Prevailing Direction | East Nth East |
Barometer | |
Maximum | 1030.3 hPa (5th) |
Minimum | 981.6 hPa (12th) |
Mean | 1009.9 hPa |
Max Daily Change | -17.6 hPa (11th) |
Rainfall | |
Days with Measured Rainfall (Greater than 0.2mm) |
11 |
Max Daily Rainfall | 6.0 mm (13th) |
Monthly Rainfall | 29.0 mm |
Humidity | |
Maximum |
100 % (Several days) |
Minimum | 24 % (27th) |
September Daily Observations | ||||||||||||
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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 | 3.6 | 13.7 | 8.2 | 4.7 | 49 | 106 | South Sth West | 1.0 | 3.5 | 998.8 | 1012.6 | +13.8 |
Early morning southerly with brief showers clearing to a mostly sunny day. Cloud increasing with another cold southerly with rain in the evening. | ||||||||||||
2 | -0.1 | 12.3 | 5.8 | 3.3 | 24 | 73 | South West | 0.5 | 3.5 | 1011.8 | 1017.7 | -5.9 |
Early showers clearing by dawn. Snow on the Port Hills. Cloud clearing to a sunny and cool day with southerly winds. | ||||||||||||
3 | -1.1 | 16.6 | 6.8 | 1.5 | 19 | 34 | East Nth East | 0 | 0 | 1013.1 | 1022.9 | +9.8 |
Clear and sunny with light southerly breezes turning NE later in the afternoon. | ||||||||||||
4 | 1.2 | 16.1 | 8.1 | 1.8 | 20 | 40 | East Nth East | 0 | 0 | 1022.4 | 1030.0 | +7.6 |
Morning cloud breaking and becoming sunny with light southerly breezes. Light NE winds in the afternoon with increasing cloud. | ||||||||||||
5 | 3.6 | 15.2 | 9.7 | 5.8 | 26 | 134 | East Nth East | 0 | 0 | 1026.5 | 1030.3 | -3.8 |
Clear and sunny with NE winds | ||||||||||||
6 | 3.0 | 14.0 | 7.9 | 7.5 | 30 | 171 | South Sth West | 0.5 | 0.5 | 1026.2 | 1029.3 | +3.1 |
Morning fog clearing to a sunny day with a cool southerly wind. Wind turning light northerly from late afternoon. | ||||||||||||
7 | 5.1 | 11.8 | 9.0 | 9.5 | 37 | 218 | East Nth East | 0 | 0 | 1015.7 | 1027.9 | -12.2 |
Mostly cloudy with a fresh cool NE wind. | ||||||||||||
8 | 3.4 | 19.3 | 10.6 | 2.6 | 28 | 59 | East Nth East | 0 | 0 | 1008.9 | 1015.7 | -6.8 |
Cloudy with light North to NE winds. | ||||||||||||
9 | 6.4 | 19.2 | 10.5 | 4.4 | 24 | 100 | East Nth East | 0 | 0 | 1007.7 | 1011.2 | +3.5 |
Mostly sunny with southerly winds turning NE from midday. | ||||||||||||
10 | 5.9 | 19.4 | 12.6 | 8.1 | 37 | 187 | East Nth East | 0 | 0 | 999.1 | 1008.5 | -9.4 |
Overcast with mild northerly winds. | ||||||||||||
11 | 9.3 | 14.4 | 11.9 | 9.0 | 31 | 206 | East Nth East | 0 | 0 | 982.2 | 999.8 | -17.6 |
Overcast with cool NE winds. | ||||||||||||
12 | 3.1 | 16.0 | 9.5 | 5.9 | 45 | 135 | South Sth West | 0.5 | 1.5 | 981.6 | 992.1 | +10.5 |
Sunny morning, becoming overcast from mid afternoon with showers and cooler southerly winds. | ||||||||||||
13 | 1.1 | 12.1 | 7.1 | 8.5 | 37 | 193 | South Sth West | 1.0 | 6.0 | 992.1 | 997.8 | +5.7 |
Sunny morning with cool southerly winds. Cloud increasing in the afternoon with rain in the evening. | ||||||||||||
14 | -0.9 | 12.9 | 5.9 | 5.0 | 37 | 115 | South Sth West | 0 | 0 | 997.9 | 1001.6 | +3.7 |
Sunny with cool southerly winds. | ||||||||||||
15 | 2.9 | 10.8 | 6.8 | 6.9 | 48 | 157 | East Nth East | 0.5 | 2.5 | 990.4 | 997.9 | -7.5 |
Cloudy with a cold southerly change from mid morning with afternoon showers. | ||||||||||||
16 | 0.0 | 15.0 | 7.8 | 3.1 | 24 | 70 | South Sth West | 0.5 | 0.5 | 992.4 | 1002.0 | +9.6 |
Some cloud during the day, increasing from late afternoon with light showers in the evening. | ||||||||||||
17 | 3.3 | 12.4 | 8.3 | 5.8 | 26 | 133 | East Nth East | 0 | 0 | 1001.8 | 1005.8 | +4.0 |
Some high cloud, increasing in the afternoon. Cool NE winds. | ||||||||||||
18 | 3.4 | 16.9 | 9.8 | 6.4 | 32 | 146 | East Nth East | 0 | 0 | 1002.3 | 1009.6 | -7.3 |
Sunny and mild with light southerly breezes in the morning. wind turning cooler NE in the afternoon with increasing cloud. | ||||||||||||
19 | 4.1 | 11.9 | 7.7 | 4.1 | 31 | 93 | South Sth West | 0.5 | 3.5 | 999.8 | 1014.1 | +14.3 |
Overcast with showers from midday, southerly winds. | ||||||||||||
20 | 3.3 | 11.4 | 7.3 | 7.3 | 34 | 166 | South Sth West | 1.5 | 2.5 | 1014.4 | 1020.4 | +6.0 |
Early showers clearing before dawn. Partly cloudy with a cool southerly wind. | ||||||||||||
21 | 4.1 | 11.2 | 7.8 | 7.6 | 35 | 174 | East Nth East | 0 | 0 | 1011.6 | 1018.6 | -7.0 |
Some cloud but mostly clear and sunny with a cool NE wind. | ||||||||||||
22 | 7.8 | 12.3 | 10.0 | 12.3 | 43 | 283 | East Nth East | 0 | 0 | 1009.2 | 1016.9 | +7.7 |
Cloudy with a fresh, cool NE wind | ||||||||||||
23 | 4.9 | 15.8 | 10.5 | 6.0 | 29 | 138 | East Nth East | 0 | 0 | 1009.7 | 1019.1 | -9.4 |
Some cloud but a mostly sunny day with NE winds from late morning. | ||||||||||||
24 | 7.5 | 20.3 | 12.4 | 8.5 | 46 | 195 | East Nth East | 0 | 0 | 999.4 | 1009.5 | -10.1 |
High cloud at times with mild north to NW winds from late morning. A cool southerly change arrived late afternoon. | ||||||||||||
25 | 1.6 | 12.2 | 6.6 | 6.7 | 29 | 144 | South Sth West | 0.5 | 4.0 | 1007.3 | 1014.5 | +7.2 |
Morning showers. Cloud breaking for a while with sunny intervals but becoming overcast from mid afternoon with further showers in the evening. | ||||||||||||
26 | -1.5 | 16.2 | 7.6 | 3.9 | 27 | 89 | East Nth East | 0 | 0 | 1013.3 | 1015.4 | +2.1 |
Some cloud but mostly sunny with light southerly winds turning cooler NE from evening. | ||||||||||||
27 | 2.7 | 22.5 | 11.9 | 3.0 | 23 | 68 | East Nth East | 0 | 0 | 1010.0 | 1015.1 | -5.1 |
Partly cloudy and mild with light north to NW winds turning southerly in the evening. | ||||||||||||
28 | 6.1 | 20.2 | 12.4 | 4.0 | 23 | 91 | East Nth East | 0 | 0 | 1011.5 | 1015.6 | +4.1 |
Some cloud but mostly sunny with variable breezes turning NE later in the afternoon | ||||||||||||
29 | 5.5 | 13.5 | 9.8 | 6.0 | 31 | 137 | East Nth East | 0 | 0 | 1015.8 | 1021.6 | +5.8 |
Cloud breaking in the afternoon, cool NE winds. | ||||||||||||
30 | 10.0 | 14.5 | 11.7 | 12.2 | 44 | 280 | East Nth East | 0 | 0 | 1014.0 | 1019.3 | -5.3 |
Morning cloud clearing to a sunny afternoon a with fresh cool NE wind. |