February 2011

RAINFALL

The Geelong Region, in common with much of eastern Australia, has just recorded the wettest spring-summer 6 months period since records began in 1871. Averaged across the urban area, rainfall totalled 521 mm, some 66 mm higher than the previous best (455 mm) in 1992-93.

It was Geelong’s second wettest summer since records began: 260 mm was recorded, compared to 267 in 2004-5. The average for summer is 112 mm. Heavy rainfall across the region to 9am on the 5th February saw falls ranging from just 24 mm at Grovedale to 120 mm at Werribee, and between 50 and 70 mm everywhere else in between, including the Bellarine Peninsula. At Leopold 25 mm fell in 30 minutes in a torrential downpour with hail, causing flash flooding and other damage.

Urban Geelong received between 59 mm (at Waurn Ponds) and 124 mm at Lara for February, in the seventh consecutive month of above average falls. Geelong Airport AWS at Mt Duneed registered 70.4 mm. This time most of the Otways received just on or above average falls as most rain fell further north. Resulting from this, Barwon Water reports a 78% overall storage level with the prospect of a weakening La Nina next month.

TEMPERATURES and OTHER FEATURES

February temperatures were noticeably below the average, by 0.7 degrees. Daily maximums averaged 23.0 degrees (mean 24.9C) and daily minimums averaged 14.2 degrees (mean 13.7C). The hottest day was the 1st with a maximum of 39.6 C and this was the only day over 30 degrees C. The lowest maximum was 17.4 degrees on the 28th.

As far as summer was concerned, this one was warmer than average for December and January, but cooler in February. The cooler maximum temperatures in February took the Bureau of Meteorology by surprise because 24-hour forecast maximums for Geelong were often found to be 2 to 5 degrees higher than what eventuated.

There was just one thunder day with widespread lightning on the 4th associated with severe storm conditions. Wind damage to trees, powerlines, houses and cars also occurred on the 1st and 19th, with severe storms registered on the 4th and 19th. There were 2 days of strong winds over 60 kph. The top wind gust was recorded at 98 kph on the 19th, and 72 kph was reached on the 1st.

RAINFALL DATA

 

GEELONG REGION
Location Total for
Month
(mm)
Monthly
Average
(mm)
Aireys Inlet 39.6 38.9
Anakie 131.8 44.0
Anglesea na 45.0
Apollo Bay 58.7 50.3
Bacchus Marsh 100.0 42.8
Ballan 160.2 48.7
Ballarat 96.8 44.7
Bannockburn 55.2 35.0
Barwon Heads na 41.0
Barwon Heads Golf Club 81.6 41.0
Bells Beach na 30.4
Bellbrae (1) na 30.4
Bellbrae (2) na 30.4
Beeac 39.4 37.6
Birregurra 44.6 36.3
Boonah 44.4 40.0
Cape Otway 54.8 41.8
Colac (Mt Gellibrand) 39.8 43.8
Clifton Springs (BoM) 93.2 39.4
Cressy 48.0 35.6
Curlewis 94.1 37.4
Durdidwarrah na 48.3
Gellibrand na 46.0
Gerangamete 43.2 47.2
Inverleigh na 42.9
Johanna Heights 79.0 80.0
Laverton 178.2 49.0
Lavers Hill 105.0 85.0
Lal Lal 71.2 49.8
Little River West 124.0 32.0
Melba Gully na na
Melbourne (City) 129.4 48.0
Meredith (Darra) 177.6 47.2
Meredith 111.2 47.2
Moriac 60.2 35.0
Morrisons na 45.8
Mt Cowley 57.2 49.6
Mt Mercer 104.6 43.8
Mt Sabine 72.8 48.8
Ocean Grove na 32.0
Pt Lonsdale 87.3 38.1
Scotsburn 42.0 34.0
Shelford na 34.0
Sheoaks 116.2 34.0
Skipton 71.0 34.0
St Leonards na 40.0
Torquay 58.0 44.0
Weeaproinah 90.4 87.5
West Barwon Dam 52.0 44.8
Winchelsea 33.7 34.5
GEELONG SUBURBS
Location Total for
Month
(mm)
Monthly
Average
(mm)
Avalon 109.0 37.3
Bell Park 109.4 43.8
Belmont 62.5 39.0
City 90.0 36.1
Connewarre 70.9 39.8
Corio 98.5 36.0
Grovedale 96.0 36.3
Grovedale South 69.7 39.1
Hamlyn Heights 92.0 38.2
Highton 65.0 39.0
Lara (1) 124.0 37.6
Lara (2) 114.5 37.6
Lara (Serendip) na 37.6
Leopold East 91.4 40.7
Leopold 89.0 40.7
Moolap 83.4 48.8
Mt Duneed Airport 70.4 31.0
Mt Duneed West 74.7 31.0
Waurn Ponds 59.2 32.0
Whittington na 36.1
Urban Area Average 90.0 31.0