September 1998

RAINFALL

Below average rains characterised the Geelong region in September. From 24 mm at Lara and Whittington to 48 mm at Mt Moriac, most areas have been left with a poor start to spring. As far as Geelong itself is concerned, this September was our driest since the drought of 1994, and soil moisture levels are still very low. Areas to the southwest, including our Otways water catchments fared better, with over 137mm at West Barwon and runoff flowing well, but the dam is still only 12% full, with most of our water coming from the Moorabool system at present.

THE OUTLOOK

In spite of a lot of (well-deserved) pessimism from local farmers, October looks promising, although hopefully not too late. October is historically our wettest month, and rains are already predicted for the first week.

TEMPERATURE

September was also warmer than average. The average maximum was 17.6 degrees (normal 16.7) and average minimum was 7.4 (normal 6.8).

RAINFALL DATA

GEELONG REGION
Location Total for
Month
(mm)
Monthly
Average
(mm)
Aireys Inlet 52.4 (71.9)
Anglesea 45.5 (70.5)
Apollo Bay 90.4 (108.6)
Ballan 25.8 (51.5)
Ballarat 66.6 (73.0)
Bellbrae 67.0 (60.5)
Beeac 78.8 (59.9)
Birregurra 61.6 (69.6)
Cape Otway 85.0 (89.6)
Colac (Elliminyt) 130.6 (114.9)
Forrest (West Barwon) 137.4 (130.6)
Inverleigh 53.0 (51.6)
Laverton 18.6 (52.8)
Melba Gully 163.0 (n.a.)
Melbourne (City) 32.6 (59.4)
Meredith (Darra) 41.0 (70.4)
Modewarre 57.2 (58.9)
Queenscliff 45.2 (59.2)
Shelford 37.4 (54.6)
St Leonards 43.5 (n.a.)
Teesdale 39.5 (57.7)
Wallington 44.0 (66.8)
Warrnambool Airport 89.0 (108.0)
Weeaproinah 152.6 (200.3)
Winchelsea 40.0 (54.4)
GEELONG SUBURBS
Location Total for
Month
(mm)
Monthly
Average
(mm)
Avalon 22.0 (46.7)
Belmont 43.0 (57.7)
City 26.0 (53.2)
Corio 31.2 (55.6)
Grovedale 39.7 (55.0)
Highton 35.8 (55.4)
Manifold Heights 30.0 (53.8)
Mt Duneed Airport 33.0 (53.2)
Mt Duneed West 45.4 (53.2)
Mt Moriac 48.0 (54.1)
Norlane 31.2 (55.6)
Leopold South 41.9 (61.9)
Serendip (Lara) 23.7 (57.5)
Whittington 24.4 (50.3)

SPECIAL NOTE:The impression was given in Thursday’s Geelong Advertiser that this was Geelong’s driest decade on record. This is not correct: the driest decade was 1876 to 1885, when the annual average was 452 mm. The period 1989-98 has had an annual average of 524 mm. In the 1994 drought our rain was only 354 mm and in 1997 it was 449 mm. So far this year (1998) we have had 349 mm.