September 2004

September 2004 Summary
Temperature
Mean 9.1 C
Mean Maximum 15.3 C
Mean Minimum 3.5 C
Maximum High 23.3 C
Maximum Low 10.8 C
Minimum High 7.5 C
Minimum Low -2.7 C
Wind Speed and Direction
Maximum Gust 57 km/h
Average 5.9 km/h
Wind Run 4485 km
Max Daily Windrun 298 km
Prevailing Direction North East
Rainfall
Days with Measured Rainfall 9
Max Daily Rainfall 13.4 mm
Monthly Rainfall 29.0 mm

September Min. Temp Max. Temp Avg. Temp Rain Prevailing Wind Dir. Avg. Wind Speed Max Gust Wind Run Casual Observations
1 8.0 18.4 12.5 0 North East 10.2 39 254 Morning cloud clearing and NE winds turning warm nor'west in the afternoon.
2 5.3 14.6 9.0 0 South 11.4 55 281 Cloud increasing in the afternoon with a cool southerly change and some light showers.
3 -0.4 8.7 5.3 0.8 South 12.2 45 298 Morning showers, some with hail. Cloud clearing in the afternoon and frosty in the evening.
4 -2.7 12.7 5.3 0 North East 3.4 23 87 Frost. Sunny with increasing high cloud and cool NE winds.
5 3.8 12.6 8.5 0 South 6.6 42 166 Variable cloud, cool gusty southerly winds easing late afternoon.
6 1.0 12.9 7.2 0 North East 3.5 24 89 Sunny with light variable winds turning NE in the afternoon.
7 1.6 14.1 7.6 0 North East 3.1 19 81 Sunny with light southerly winds turning NE in the afternoon.
8 1.5 12.7 7.0 0 North East 4.7 29 117 Morning cloud clearing by afternoon to a sunny day.
9 -0.4 19.9 9.9 0 North East 4.2 32 110 Morning frost. High cloud increasing with a change to warm NW winds in the afternoon.
10 7.2 18.1 12.3 0 North 4.3 26 113 High cloud, warm northerly winds.
11 10.0 18.2 13.2 0 North East 4.4 27 116 Cloudy with warm northerly winds turning cooler NE later in the afternoon.
12 10.8 17.4 13.5 0 North East 4.0 23 106 Overcast with high cloud, light breeze.
13 7.9 16.3 11.6 0.2 North East 6.7 30 169 Cloudy. NE wind turning southerly in the evening with light showers.
14 4.6 14.1 8.6 0 South 5.2 39 131 Morning cloud clearing. A cooler southerly change in the afternoon but remaining dry.
15 3.4 14.2 8.5 0 North East 5.1 27 133 High cloud increasing in the afternoon, NE wind easing.
16 4.3 15.8 8.8 1.4 South 4.6 35 119 Mostly cloudy. A cold southerly change in the afternoon brings a few showers.
17 0.8 16.6 8.0 0 North West 3.9 32 101 Light frost. Cloud increasing in the morning but clearing again in the afternoon.
18 2.4 18.5 8.0 4.8 South 9.5 57 237 Warm gusty nor'westerly wind changing to strong cold southerly in the afternoon with showers and snow on the Port Hills.
19 -0.8 10.6 5.1 0.2 South 7.9 44 198 Some cloud but mostly sunny with a cool and gusty southerly wind.
20 1.9 18.3 8.9 0 South 3.0 29 78 Morning cloud clearing to a sunny day, some high cloud late afternoon.
21 1.0 23.3 12.1 0 North West 5.2 49 132 Morning high cloud clearing to a warm, sunny day. Gusty nor'west winds for a time in the evening.
22 3.8 13.2 8.8 0 South 8.4 44 207 Some cloud. Gusty southerly wind.
23 4.2 11.2 7.9 5.2 North East 7.7 45 190 Cloudy with morning and evening showers. Gusty NE wind.
24 6.5 11.8 8.3 2.8 North East 3.6 19 93 Cloudy with morning and evening rain showers and drizzle.
25 1.7 15.2 8.7 0 North East 3.9 30 101 Sunny with NE wind getting up in the afternoon.
26 1.8 20.1 11.2 0 North East 5.0 27 128 Sunny and warm thin high cloud increasing in the afternoon with a cooler NE wind.
27 7.3 21.9 12.0 0 South 8.4 46 210 Variable cloud, warm northerly winds. A change in the afternoon to cool gusty southerlies with a few light showers.
28 2.8 7.5 4.8 13.4 South 3.6 25 94 Cold with rain and snow on the Port Hills. Rain easing and cloud breaking late afternoon.
29 -0.9 11.6 6.4 0.2 North East 7.2 34 181 Frost. Mostly sunny with increasing thin high cloud in the afternoon.Cool north east wind.
30 7.7 18.1 12.3 0 North East 6.0 29 153 High cloud, northerly winds turning cooler NE in the afternoon.
September 2004 temperature graph September 2004 wind direction graph September 2004 wind speed graph September 2004 rainfall graph