Summary of 2003 Weather

(Temperature figures are from the Bureau of Meteorology station at Mount Duneed)


Month Weather Conditions Temps (deg C) Rainfall (mm) Cumulative Rainfall Comments
JAN 7 days over 30 deg, incl 4 > 35 deg.   New record: 44.8 (Geelong’s hottest day) on 25th. Smoky atmosphere on several days. 1 Thunder day. Av max 25.4 Jan av max. is 25.2. Av min 12.4. Av is 13.6. Mt Duneed 24.8 mm. Urban area averaged 24 mm.

January normal is 34.3 mm.

Mt Duneed 24.8 mm.

Urban area 24 mm.

Normal Geelong cumulative total (1 month) is 34.3 mm.

Most rain fell after 9am on 31st Dec. One other rain event. SOI rising – end of El Nino predicted. Water catchments supplies at 58%.

Sundogs seen on 19th.

FEB Warmer than normal by about 1.2 deg. 2 days >30 deg. 1 thunder day and several days of high humidity. Very settled weather. Av max.23.7

Feb av max. is 25.6. Av min 14.6. Av is 14.1 deg.

Mt Duneed 29.0 mm.   Urban area averaged 20 mm.   February normal is 37.6. Mt Duneed 53.8 mm.   Urban area 44 mm. Normal Geelong cumulative total (2 months) is 71.9 mm. Below av rain for 7th month in a row. Since August 2002 rainfall has only been 60% of normal.   Water storages 53%.
MAR Slightly cooler than normal; 4 days >30 deg. New high min record on 19th: 23.2 deg. Highest 35.7 on 18th. 3 thunder days, incl 2 small hail. Av max 22.8

March av max. is 23.5. Av min 12.7.

Av is 12.8.

Mt Duneed 16.2.

Urban area averaged 21 mm.

March normal is 34.6.

Mt Duneed 70.0 mm.

Urban area 65 mm.

Normal Geelong cumulative total (3 months) is 116.2 mm.

Below av rain in Geelong & Golden Plains; above av on Bell Pen & Otways. Dust storms & strong winds >80kph on 19th. Fog on 17th.

Water storages 49.4%.

APR Slightly cooler than normal; 1 day > 30deg. Coldest morning 5.5 deg on 5th. 2 thunder days; some lightning & power blackouts. Av max 19.7

April av max. is 20.3. Av min 9.8.

Av is 10.2.

Mt Duneed 55.8.

Urban area averaged 55 mm.

April normal is 39.2.

Mt Duneed 125.8 mm.

Urban area 120 mm.

Normal Geelong cumulative total (4 months) is 155.4 mm.

First above av rain month since June 2002. Most rain fell 10th – 13th, but Otway catchments received below av falls.

Water storages 47%.

MAY Exactly typical in temperature, daily max 0.9 above av, min 0.9 below av. Warmest day 24.7 deg on 7th. Coldest overnight 2.1 on 29, 30th, 31st. Av max 18.1

May av max is 17.2.

Av min 7.2.

Av is 8.1.

Mt Duneed 14.4.

Urban area averaged 18 mm

May normal is 47.2.

Mt Duneed 140.2 mm.

Urban area 138 mm.

Normal Geelong cumulative total (5 months) is 202.6 mm.

Very poor rain. Geelong has now had below av rain in 15 of the last 18 months. Fine, settled weather dominated the month. Water storages 43.5%.
JUNE Temps about 1 degree above normal. Warmest day 21.7 on 2nd; coldest morning -0.3 deg on 26th. Frosts on 3 days. Av max 15.4

June av max is 14.3.

Av min 6.5.

Av is 5.9.

Mt Duneed 22.6.

Urban area averaged 18 mm.

June normal is 43.3.

Mt Duneed 162.8 mm.

Urban area 156.0 mm.

Normal Geelong cumulative total (6 months) is 245.9 mm.

Another poor rainfall month for areas around Geelong and Moorabool catchment, but Otways above average. Water storages down to 41.6%.
JULY Temps slightly above av. Coldest day 29th (10.8 deg). Frosts on 4 days. Light winter hail twice; strong winds twice, incl >80kph on 28th. Av max 14.4

July av max is 13.9.

Av min 5.0.

Av is 5.1.

Mt Duneed 82.0.

Urban area averaged 80.0.

July normal is 41.9.

Mt Duneed 244.8 mm.

Urban area 236.0 mm.

Normal Geelong cumulative total (7 months) is 287.8 mm.

Best rain month in Geelong since Oct 2001. 70mm fell in the final week when unstable air masses from SW combined with moist tropical. Water storages now 43.9%.
AUG Temps slightly cooler, making winter overall very close to normal (10.2 deg cf 10.0 normal). Strong winds >70kph 4 times in final week. 4 frosts. Av max 14.4

Aug av max is 15.1.

Av min 5.5

Av is 5.7.

Mt Duneed 70.0.

Urban area averaged 70.0.

August normal is 47.3.

Mt Duneed 314.8 mm.

Urban area 306.0 mm.

Normal Geelong cumulative total (8 months) is 335.1 mm.

Another good rain month results in above average winter, except in Moorabool catchment (now 28%).

Water storages now at 56.1%. 1 thunder day.

SEPT Temps 0.5 degree below normal. Strong winds (gusts >60kph) on 18 days, incl 2 severe windstorms >90kph (18th & 24th) & damage*. Av max 16.3

Sept av max is 16.7.

Av min 6.1.

Av is 6.8.

Mt Duneed 37.4.

Urban area averaged 37.

September normal is 53.2.

Mt Duneed 352.2 mm.

Urban area 343 mm.

Normal Geelong cumulative total (9 months) is 388.3 mm.

Rain poor around Geelong & Moorabool, above av in Otways. 4 light hail, 3 thunder days. 3 frosts. Catchments 63%. Wind shear on 22nd caused plane crash B. Heads.
OCT Temps 2.3 deg below normal. Only 4 days >20C. Lowest overnight 1.8C. Highest 27C.

Up to Oct 31 Geelong is 0.5C cooler than in a normal year.

Av max 15.8

Oct av max is 19.0

Av min 7.0

Av is 8.5.

Mt Duneed 90.2

Urban area averaged 88.0.

October normal is 62.0.

Mt Duneed 442.4 mm.

Urban area 431 mm.

Normal Geelong cumulative total (10 months) is 451.7 mm.

Best rainfall month since April 2001. 21 rain days, incl I hail day and 2 thunder days. Catchments 71%. Wettest day on 1st: urban area >30mm.
NOV Temps 0.4 deg below normal.

6 days >30C. Max 33.8C on 29th. 3 thunder days incl hail on 30th (Anglesea bushfires 30th) Drifting smoke from NW Tas on 22-23rd.

Av max 21.0

Nov av max is 21.2.

Av min 9.6

Av is 10.2.

Mt Duneed 25.6.

Urban area averaged 30.

November normal is 51.9.

Mt Duneed 468.0 mm.

Urban area 461 mm.

Normal Geelong cumulative total (11 months) is 503.6 mm.

Most areas <50% av rain.   Wrap-around system brought 16-30mm to Glg on 23rd. Moorabool catchment only area above. Catchments 70%. 1 strong wind day >50kph.
DEC Temps 0.5 deg above normal. 6 days >30C. Max 40.5C on 30th. 2 thunder days; suspected tornado near Inverleigh 21st. Av max 25.1

Dec av max is 24.0.

Av min 11.9

Av is 12.0.

Mt Duneed 24.8.

Urban area averaged 25 mm.

December normal is 44.9.

Mt Duneed 492.5 mm

Urban area 486 mm.

Normal Geelong cumulative total (12 months) is 548.5 mm.

Below av rain in most areas.   Wide variation (13-40mm) across urban area in t’storms on 21st. Clifton Springs 40mm. Catchments 64%. 1 strong wind day >80kph on 22nd.


OVERALL: New records (extremes) set: 2; Slightly cooler year than normal: 0.3 degrees below long-term average;Drier year than normal: 493mm(normal 549mm); Hottest Day: 25th Jan 44.8C – hottest ever recorded; Warmest Night:19th Mar 23.2C – highest ever; Coldest Day: 29th July 10.8C; Coldest Night: 26th June -0.3C; Wettest Day: Dec 21st (>40mm at Clifton Springs); Wettest Month: October; Driest Month: May; No of Days above 30°C: 26 (average 24.5); Number of “Thunder Days” in Urban area: 17 (average 15) ; Number of severe storms: 3 (average 3); Strongest Wind Gust: 118kph Mt Gellibrand*; Number of frosts: 14; Number of windy days (>60kph): 27.


Copyright Ó Geelong Weather Services, 2003