Heating and Wind Design Conditions for South Africa
City | Lat. | Long. | Elev. | Std. Pres. | Heating Dry Bulb, °C | Extreme Wind Speed, m/s | Coldest Month WS / MCDB | MCWS / MCWD to DB | Annual Extreme Daily | ||||||||||||
0.4% | 1% | 99.6% | 0.4% | Mean DB | Std. DB | ||||||||||||||||
°N | °W | Meters | kPa | 99.6% | 99% | 1% | 2.5% | 5% | WS | MCDB | WS | MCDB | MCWS | PWD | MCWS | PWD | Max | Min | Max | Min | |
Bloemfontein | 29.10 S | 26.30 E | 1348 | 86.15 | -3.5 | -2.2 | 10.6 | 9.3 | 8.3 | 9.2 | 12.7 | 8.2 | 14.2 | 0.5 | 220 | 5.4 | 270 | 36.6 | -5.6 | 1.4 | 1.7 |
Cape Town | 33.98 S | 18.60 E | 42 | 100.82 | 3.6 | 4.9 | 14.5 | 13.0 | 11.8 | 13.7 | 14.1 | 12.4 | 14.2 | 0.1 | 40 | 5.2 | 170 | 34.5 | 1.3 | 1.6 | 0.8 |
Durban | 29.97 S | 30.95 E | 8 | 101.23 | 10.0 | 11.1 | 11.9 | 10.4 | 9.2 | 10.6 | 21.0 | 9.2 | 20.5 | 0.3 | 340 | 6.3 | 30 | 34.0 | 7.6 | 1.2 | 1.1 |
Johannesburg | 26.13 S | 28.23 E | 1700 | 82.50 | 1.0 | 2.8 | 9.6 | 8.5 | 7.6 | 8.7 | 12.7 | 7.9 | 12.3 | 4.1 | 210 | 4.1 | 300 | 31.6 | -1.6 | 1.0 | 1.7 |
Marion Island | 46.88 S | 37.87 E | 22 | 101.06 | -0.9 | -0.1 | 26.7 | 23.7 | 21.1 | 26.3 | 3.1 | 23.0 | 5.9 | 7.6 | 200 | 9.6 | 290 | 20.1 | -4.6 | 5.0 | 2.4 |
Port Elizabeth | 33.98 S | 25.60 E | 60 | 100.61 | 6.3 | 7.5 | 14.6 | 12.9 | 11.5 | 13.7 | 14.7 | 12.4 | 15.5 | 0.9 | 270 | 4.3 | 290 | 35.9 | 3.5 | 2.1 | 1.2 |
Pretoria | 25.73 S | 28.18 E | 1322 | 86.42 | 3.9 | 5.1 | 6.4 | 5.4 | 4.7 | 5.8 | 15.9 | 5.0 | 15.2 | 0.5 | 220 | 1.9 | 270 | 34.7 | 1.6 | 1.6 | 1.1 |