January 2005

RAINFALL

An exciting end to the month of January occurred on the 26th with Geelong’s heaviest summer downpour since records began around 1870. With 6-hour totals above 100mm across most of the urban area, the southern suburbs seemed to record more rain than other areas, and the highest confirmed reading was 128mm at South Geelong.

Owing to the thunderstorms the total monthly rainfall at Mount Duneed was 113mm, and this roughly equates to the total Geelong average rain for the three summer months combined. Certainly it starts the year off with a bang, although farmers were generally unimpressed with the timing and the catchments received only minor runoff.

Despite that, the event has created a lot of interest in the region, not to mention large payouts for insurance companies, possible litigation against certain public bodies and a surge of work for contractors.

Such an event is at the extreme top end of the “normal” scale which meteorologist would expect in this area in summer, but it was by no means off the scale.

There were 5 days with strong wind gusts over 60 kph, 4 days of thunder including one day of hail -the 26th, when stones up to 10-cent size fell across the city in numerous places.

TEMPERATURE

As far as temperature is concerned, preliminary figures show that January was almost a degree cooler than the long-term normal. Despite 6 days over 30 degrees, including one over 40 (40.4C on the 11th) average daily maximum temperature was 24.5, or 0.7 below normal. Daily minimums averaged 12.6 which is 1.0 degrees under normal.

RAINFALL DATA

 

GEELONG REGION
Location Total for
Month
(mm)
Monthly
Average
(mm)
Aireys Inlet 73.6 24.4
Anakie 40.0
Anglesea 36.0
Apollo Bay 57.6 52.1
Bacchus Marsh 33.0
Ballan 69.0 34.9
Ballarat 34.0 39.1
Bannockburn 29.6 30.0
Barwon Heads 62.0 33.0
Barwon Heads Golf Club 55.6 33.0
Bells Beach 39.0 51.1
Beeac 27.9
Beech Forest 80.0 78.0
Benwerrin 57.4 43.9
Birregurra 49.6 27.9
Boonah 86.0 n.a.
Cape Otway 52.8 43.9
Clifton Springs 65.8 43.9
Colac 52.0 43.9
Cressy 25.8 43.9
Curlewis 33.8
Dereel 43.0
Drysdale 41.4
Durdidwarrah 27.8 n.a.
Fiskville 36.0
Forrest 34.5 54.8
Gellibrand 46.6 n.a.
Gerangamete 30.8 n.a.
Inverleigh (BoM) 27.4 36.0
Lake Colac 41.4 n.a.
Lal Lal 42.6 n.a.
Laverton 32.8 40.0
Lethbridge 38.0
Melba Gully 88.0 n.a.
Melbourne (City) 23.2 48.0
Meredith 40.0
Meredith (Darra) 45.8 40.9
Moriac 36.4 43.9
Morrisons 54.4 36.0
Mt Buninyong 32.4 n.a.
Mt Cowley 52.6 n.a.
Mt Mercer 22.6 n.a.
Mt Sabine 56.8 n.a.
Pollocksford 37.2 36.0
Portarlington 33.8
Queenscliff 45.0 35.0
Shelford 24.0 33.0
Sheoaks 42.6 n.a.
St Leonards 78.5 35.0
Skipton 46.0 n.a.
Teesdale 37.8
Torquay 55.0 29.0
Weeaproinah 89.0 87.0
West Barwon 48.6 36.0
Winchelsea 50.2 25.4
Wooloomanata 32.0 n.a.
You Yangs 40.0 31.0

GEELONG SUBURBS
Location Total for
Month
(mm)
Monthly
Average
(mm)
Avalon 48.4 37.1
Bell Park 94.0 34.8
Belmont (High St) 130.5 34.2
Belmont (Clarke Av) 141.0 34.2
Belmont (Waurn Ponds Creek) 120.4 34.2
City 32.2
Connewarre 81.3 39.2
Corio 35.0
Grovedale 120.0 34.3
Grovedale South 122.5 34.2
Hamlyn Heights 84.0 45.8
Highton 115.0 34.2
Lara 39.0 27.7
Lara (2) 30.0 27.7
Leopold East 58.7 47.6
Leopold 62.0 48.0
Manifold Heights 93.2 34.8
Mt Duneed Airport 115.6 38.1
Mt Duneed West 88.0 38.1
South Geelong 145.0 38.0
Whittington 73.0 32.2
Urban Area Average 92.0 34.3