Spatiotemporal Variation of Frost within Growing Periods

Table 1

Free State Province climate stations used in the frost risk analysis.

Station	Latitude	Longitude	Altitude (m)
Bethlehem	−28.2500	28.3333	1680
Bethlehem-ARC	−28.1626	28.2953	1631
Bleskop	−29.8833	24.5833	1145
Bloemfontein-Hertzog	−29.1000	26.3000	1351
Bothaville-Balkfontein	−27.4000	26.5000	1280
Bothaville-Nampo	−27.2389	26.6638	1300
Bultfontein	−28.1513	26.0672	1306
Clocolan	−28.9211	27.5841	1602
Fauresmith	−29.7700	25.3200	1522
Ficksburg	−28.8667	27.8500	1829
Frankfort	−27.2667	28.5000	1502
Gariep Dam	−30.6167	25.5000	1324
Glen College	−28.9500	26.3333	1304
Golden Gate	−28.5037	28.5837	1846
Hertzogville	−28.2000	25.3000	1326
Hobhouse	−29.5167	27.1333	1448
Kestell	−28.3141	28.7086	1692
Koppies	−27.2778	27.4180	1401
Kroonstad	−27.6667	27.2500	1348
Marquard	−28.5044	27.3563	1447
Oukraal	−29.9333	24.6833	1143
Petrusburg	−28.9833	25.5000	1219
Plessis Draai	−27.9833	26.1333	1249
Reitz	−27.8000	28.4333	1615
Rietpan	−27.1667	26.9167	1321
Rustfontein Dam	−29.2667	26.6000	1382
Tweespruit	−29.1936	27.0696	1567
Villiers	−27.0368	28.6149	1493
Virginia	−28.1000	26.8667	1335
Vrede	−27.4333	29.1667	1670
Warden	−27.9700	29.0700	1770
Welkom	−28.1333	26.6833	1295
Welkom-AER	−28.0000	26.6667	1338
Wepener	−29.7333	27.0333	1438
Wesselsbron	−27.7000	26.4500	1325
Zastron	−30.3000	27.0830	1661