May 2015

 RAINFALL

Most of the Geelong-Otways region – except to the north – received average to well above average rainfall for the month.  The Bureau of Meteorology’s automatic weather station at Breakwater failed on 3 occasions during the month thereby missing approximately 20 mm of rain, thus affecting their published Geelong total.  The rain for Breakwater as computed by Geelong Weather Services for May was 42.4 mm, just above the latest 30-year average 41.5.

Mt Sabine in the Otway Ranges at the head of the Barwon Catchment recorded the amazing 344 mm, well above its average.  The storages are therefore at a stationary 57% of capacity, but an increase will be necessary over the winter months.

As far as autumn overall is concerned, this was a drier one than the most recent 30-year average.  Geelong received 93 mm over the 3 months compared to the average 109 mm.  This corresponds with a slowly drying trend in autumn over the last 30 years.

May isohyet map of region below.  Please click to enlarge:

Figures in millimetres

Figures in millimetres

TEMPERATURE

Days in May were cooler than the 30-year average but nights were warmer.  Overall the mean May temperature for Geelong was warmer by a mere 0.2 degree C.

Highest temperature reached 22.7 C on the 2nd, and the lowest overnight minimum was 4.4 C on the 26th.  The coldest day was the 23rd with a maximum of 12.9 C.

Autumn overall was cooler by 0.3 C than the latest 30-year average temperature.  March and April were cooler and May was warmer.

OTHER

There were no storms but 4 days where strong wind gusts exceeded 60 kph.  The strongest was 74 kph at Breakwater on the 11th.

 RAINFALL DATA

 

GEELONG REGION
Location Total for
Month
(mm)
Monthly
Average
(mm)
Aireys Inlet 62.0 (55.6)
Anakie 26.6 (52.0)
Anglesea na (63.0)
Apollo Bay 124.4 (99.2)
Ballan 52.2 (47.5)
Ballarat 38.8 (68.1)
Bannockburn 37.4 (46.0)
Barwon Heads 61.0 (64.0)
Bellbrae na (65.1)
Bells Beach 43.6 (65.1)
Beeac 56.0 (57.2)
Beech Forest 261.4 (181.3)
Birregurra 79.0 (64.5)
Cape Otway 155.6 (91.7)
Colac 60.2 (71.9)
Clifton Springs 41.8 (n.a.)
Curlewis na (n.a.)
Drysdale 67.0 (48.0)
Durdidwarrah 41.8 (59.0)
Forrest (West Barwon Dam) 127.8 (108.4)
Gellibrand 215.6 (93.7)
Inverleigh 37.0 (56.6)
Johanna Heights na (170.0)
Lal Lal 43.0 (64.2)
Lavers Hill na (180.0)
Melba Gully na (n.a.)
Meredith (Darra) 45.0 (60.2)
Moriac 60.2 (55.0)
Morrisons na (na)
Mt Cowley 181.2 (na)
Mt Mercer 51.2 (na)
Mt Sabine 343.8 (na)
Pollocksford 28.6 (na)
Point Lonsdale 47.4 (57.0)
Portarlington na (58.4)
Queenscliff na (58.1)
Scotsburn 74.0 (na)
Sheoaks 30.2 (na)
Shelford 34.0 (37.0)
Skipton 48.4 (44.0)
Sutherlands Creek 21.0 (41.0)
St Leonards 43.5 (58.0)
Teesdale na (45.2)
Torquay na (58.0)
Wyelangta 327.4 (202.7)
Winchelsea 58.8 (48.0)
You Yangs 18.5 (44.0)
GEELONG SUBURBS
Location Total for
Month
(mm)
Monthly
Average
(mm)
Avalon 21.2 (40.5)
Bell Post Hill 32.6 (40.7)
Belmont 58.0 (43.1)
Breakwater 42.4 (41.5)
Connewarre 47.5 (43.9)
Corio 25.7 (41.0)
East Geelong 40.6 (43.0)
Grovedale 65.0 (45.8)
Grovedale South 66.8 (49.8)
Hamlyn Heights 41.1 (43.5)
Herne Hill 40.0 (40.5)
Highton 45.0 (43.8)
Lara 20.0 (39.4)
Lara (Serendip) 25.1 (39.4)
Leopold 37.0 (44.4)
Leopold East 60.0 (44.4)
Manifold Heights 44.3 (44.4)
Moolap 41.8 (46.0)
Queens Park 32.4 (41.0)
Waurn Ponds 48.8 (45.0)
Whittington 45.2 (41.8)
Average across Urban Area 43.0 (41.5)

 

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