September was a
mild (+1.5° Celsius), dry (80.4%) month with slightly less sun 96.0%) than
usual. With just one gale
reported and a maximum gust of only 51 knots the traditional equinoctial gales
failed to make an appearance.
 | Daily Data |
| Weather Diary |
|
1999 |
Day |
1974-99 |
1999 |
Day |
1974-99 |
|||
|
Mean Maximum Temperature |
13.6 |
12.2 |
Highest Max temp |
15.7 |
5 |
18.0 |
||
|
Mean Minimum Temperature |
10.8 |
9.1 |
Lowest Min temp |
6.2 |
30 |
1.4 |
||
|
Mean Sea Temperature |
12.7 |
11.8 |
Lowest grass minimum |
2.3 |
29 |
-2.6 |
||
|
30 cm Earth temperature |
12.4 |
11.3 |
Days with ground frost |
0 |
1.1 |
|||
|
100cm Earth temperature |
11.9 |
11.0 |
Days with air frost |
0 |
0.0 |
|||
|
Total Rainfall (mm) |
71.9 |
88.7 |
Days with snow/sleet |
0 |
0.3 |
|||
|
Wettest Day (mm) |
21.7 |
6 |
16.5 |
Days with snow cover at 09hr |
0 |
0.0 |
||
|
Rain Days (> 0.1mm) |
17 |
21.3 |
Days with hail |
0 |
1.8 |
|||
|
Wet Days (> 0.9mm) |
12 |
16.1 |
Days with fog during 24hrs |
11 |
6.5 |
|||
|
Total sunshine, hrs |
112.0 |
116.6 |
Days with fog at 09hrs |
5 |
1.6 |
|||
|
Sunniest day, hrs |
11.4 |
14 |
10.5 |
Days with NIL sun |
10 |
6.2 |
||
|
Mean wind speed, kts |
12.3 |
15.2 |
Days with gale |
1 |
3.3 |
|||
|
Maximum gust, kts |
51 |
8 |
55.3 |
Days with thunder |
0 |
0.3 |
||
|
Mean Sea Level pressure |
1005.4 |
1010.0 |
Days with aurora |
3 |
3.2 |
|||
|
Wind Direction (%) North |
0.0 |
10.1 |
Wind Direction (%) S. West |
12.9 |
14.0 |
|||
|
at 09 hr N. East |
3.2 |
6.0 |
at 09 hr West |
12.9 |
18.8 |
|||
|
East |
19.4 |
9.3 |
N. West |
6.5 |
9.8 |
|||
|
S. East |
16.1 |
13.6 |
||||||
|
South |
25.8 |
14.1 |
CALM |
0.0 |
1.2 |
