Climate at the NSW Centre for Tropical Horticulture, Alstonville
The Bureau of Meteorology station at CTH, Alstonville
The NSW Centre for Horticulture is ideally suited for sub tropical horticultural production with a northerly aspect, high rainfall and deep, fertile, well drained soils.
Average rainfall is 1857mm with a dry spring. Temperatures range from 9.8ºC [49.64ºF] (average July minimum) to 27.2ºC [80.96ºF] (average January maximum) with an elevation of 140m.
The site also contains the Bureau of Meteorology weather station for Alstonville.
A climate summary for the Alstonville/Wollongbar area is presented below. Rainfall data is based on 44 years of records and the temperature data is based on 33 years.
|
J |
F |
M |
A |
M |
J |
J |
A |
S |
O |
N |
D |
Annual |
|
| Mean Daily Maximum Temp (oC) |
27.2 |
26.7 |
25.9 |
24.0 |
21.2 |
18.9 |
18.6 |
19.9 |
22.3 |
24.1 |
25.4 |
26.9 |
23.4 |
|
Mean Daily Minimum Temp °C) |
19.5 |
19.4 |
18.3 |
15.9 |
13.3 |
10.9 |
9.9 |
10.6 |
12.7 |
14.8 |
16.6 |
18.5 |
15.0 |
|
Mean Daily Evaporation (mm) |
5.8 |
5.0 |
4.3 |
3.5 |
2.7 |
2.4 |
2.7 |
3.5 |
4.5 |
5.0 |
5.5 |
6.1 |
4.3 |
|
Mean Daily Sunshine (hours) |
7.6 |
7.0 |
6.7 |
6.7 |
6.0 |
6.1 |
6.9 |
7.6 |
8.2 |
7.8 |
7.6 |
7.7 |
7.2 |
|
Mean Monthly Rainfall (mm) |
170.1 |
226.7 |
268.8 |
192.5 |
187.2 |
159.5 |
91.6 |
73.6 |
52.7 |
100.9 |
127.4 |
149.3 |
1800.3 |
|
Mean number of Rain days |
14.5 |
16.7 |
17.8 |
15.4 |
15.0 |
11.8 |
9.6 |
8.8 |
8.4 |
11.5 |
13.2 |
13.1 |
155.9 |