April 2011

RAINFALL

Rainfall across most of the Geelong-Otways Region fell slightly below average for the first time in the last nine months (40 mm compared to 42 mm). The big exception to this was the Bellarine Peninsula around Drysdale-Clifton Springs. That area received over 70 mm for the month, exceeding the average by over 50%. This was mainly due to localised, heavy rains of 50 mm on the 11th-12th. On those days the rest of Geelong received around 25 mm. However February to April rain in this region was clearly above average, despite the Bureau of Meteorology’s warning to expect only a 40-45% chance of average rains for the period. The La Nina situation continues but is weakening as predicted.

TEMPERATURE

April in Geelong was around half a degree cooler (0.45 C) than the long-term average, according to raw temperature figures recorded at Geelong Airport AWS. Average daily maximum was 20.0 C (compared to the long-term 20.3 C) and average minimum was 8.9 C (compared to 9.5 C). The top temperature was 27.7 C on the 9th and the lowest maximum was 16.2 C on the 19th. Minimums ranged from 5.0 C on the 11th to 16.1 C on the 9th.

Once again the Bureau of Meteorology got it quite wrong. In their 3-monthly outlook for February to April, the BoM predicted an over 80% chance that Geelong’s daily maximum temperatures would be above average, but in each month Geelong’s maximum temperatures were below average by well over half a degree C.

OTHER

Another generally very settled autumn month saw only one strong wind day when gusts reached 65 kph on the 9th. There were several foggy days as high pressure systems dominated in the second half of the month. Water catchments are still hovering around 73% of capacity at the moment, despite a relaxation of restrictions to Stage 2.

RAINFALL DATA

 

GEELONG REGION
Location Total for
Month
(mm)
Monthly
Average
(mm)
Aireys Inlet 37.4 50.5
Anakie 39.4 41.0
Anglesea na 56.0
Apollo Bay 63.1 85.2
Bacchus Marsh na 42.4
Ballan 49.6 55.5
Ballarat 31.2 53.8
Bannockburn 49.2 42.0
Barwon Heads GC 42.4 51.0
Bellbrae na 52.4
Bells Beach na 52.4
Beeac 26.8 45.5
Birregurra na 48.8
Boonah 49.4 n.a.
Cape Otway 53.8 72.3
Colac 30.9 59.0
Clifton Springs 76.8 48.3
Cressy 31.6 50.2
Curlewis 61.1 48.0
Drysdale 74.8 48.3
Durdidwarrah 53.4 n.a.
Forrest (Town) 43.6 83.1
Forrest (West Barwon) 46.8 94.4
Gellibrand na 77.5
Inverleigh 21.6 48.0
Johanna Heights 120.0 130.0
Lal Lal 42.0 n.a.
Lavers Hill 181.0 148.0
Laverton 52.6 49.0
Lethbridge na 57.0
Little River (You Yangs) 26.0 43.2
Melba Gully na n.a.
Melbourne (City) 101.8 58.0
Meredith (Darra) 45.0 58.2
Moriac na 45.0
Morrisons na n.a.
Mt Cowley 58.2 n.a.
Mt Mercer 45.0 n.a.
Mt Sabine 86.0 n.a.
Point Lonsdale 42.0 52.0
Pollocksford na n.a.
Portarlington na 53.6
Queenscliff na 48.3
Shelford na 44.0
Sheoaks 33.6 n.a.
Skipton 39.6 n.a.
St Leonards na 50.0
Teesdale na 46.0
Torquay na 45.0
Weeaproinah 151.0 157.7
Winchelsea 29.0 40.0

GEELONG SUBURBS
Location Total for
Month
(mm)
Monthly
Average
(mm)
Avalon 41.4 46.7
Bell Park 35.8 45.1
Belmont na 43.5
City 43.0 43.0
Connewarre 29.8 41.0
Corio 31.3 39.0
Grovedale 41.8 43.5
Grovedale South 42.8 43.5
Hamlyn Heights 32.4 43.0
Highton na 43.4
Lara 26.5 39.1
Lara (Serendip) 22.1 39.1
Leopold 46.0 50.2
Leopold East 52.3 50.2
Manifold Heights na 43.0
Moolap 34.4 50.2
Mt Duneed Airport 40.4 46.4
Mt Duneed West 46.4 46.4
Waurn Ponds 38.4 44.0
Whittington na 43.0
Geelong Urban Area Average 40.0 42.0

 

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