Summary of Geelong Weather, 2017
(Current figures are from the Bureau of Meteorology station at Breakwater “Geelong Racecourse AWS”, with all temperature and rainfall averages from several
official Geelong BoM sites from most recent 30-year averages, 1986-2015)
JAN Warmer month by 0.85°. Highest 37.6° on 7th, coolest 20.6° on 3rd. Warmest night 25.0° on 8th, coolest 9.4° on 25th. 6 days > 30°. Av max 25.8. Jan av max. is 25.1. Av min 14.6. Av is 13.6. Mean 19.4. Breakwater 34.0*** mm. Urban area averaged 35 mm.
January 30-yr normal is 39.4 mm. Breakwater 34.0 mm.
Urban area 35 mm.
Normal Geelong cumulative total (1 month) is 39.4 mm. Average to below av rain across region except for Otways. No high wind gusts, no storms or severe storms, no thunder-lightning days. Water catchments 75% of capacity.
FEB Fractionally cooler month by 0.1°. Highest 36.3° on 8th. Lowest max 17.4° on 6th. Warmest night 20.3° on 9th. Coldest night 8.3° on 15th. 8 days >30°. Av max 25.8. Feb av max. is 25.2. Av min 13.5. Av is 14.2. Mean 19.7. Breakwater 46.2 mm. Urban area averaged 40 mm. February normal is 36.9 mm. Breakwater 80.2 mm.
Urban area 75 mm.
Normal Geelong cumulative total (2 months) is 76.3 mm. Average to above average rain across most of region. No high wind gusts, no storms. 1 thunder day on 5th with >40 mm rain. Water catchment 70% of capacity.
MAR Much warmer month, the 4th warmest since 1903. Highest max 33.9° on 15th. Low min 8.1° on 31st. 5 days >30°. 1 Th/L day, 1 severe storm (22nd). Av max 25.8. Mar av max. is 23.3. Av min 14.9. Av is 12.3. Mean 17.8. Breakwater 51.2 mm. Urban area averaged 52 mm. March normal is 26.4 mm. Breakwater 131.4 mm.
Urban area 127 mm.
Normal Geelong cumulative total (3 months) is 102.7 mm. Well above average rain over most of region. Catchments 66% of cap. Severe storm on 21-22nd: Lorne 103 mm, Clifton Sp 77 mm, Nth Shore 41 mm, Corio 58 mm, Bellbrae 61 mm)
APR Warmer month by 0.6°C, largely due to above av minimums. Highest 29.9° on 8th. 3 very windy days (83 kph on 9th). No days >30°. Av max 20.5. Apr av max. is 20.3. Av min 11.0. Av is 9.9. Mean 15.1. Breakwater 151.2 mm. Urban area averaged 152 mm. April normal is 39.8 mm. Breakwater 282.6 mm.
Urban area 279 mm.
Normal Geelong cumulative total (4 months) is 142.5 mm. Extremely high rainfall month across region, esp urban area. 14 rain days. 2 severe storms on 8-9th and 24th with flash flooding and other damage. 3 Th/L days, 2 hail days.
MAY Cooler month by 0.2°C. Highest 20.8° on 21st, lowest min 3.5° on 12th. No very windy days, no storms, no thunder days. 6 days >20°. Autumn warmer and much wetter than normal. Av max 17.0. May av max. is 17.1. Av min 8.0. Av is 8.3. Mean 12.7. Breakwater 27.8 mm. Urban area averaged 30 mm. May normal is 42.1. Breakwater 310.4 mm.
Urban area 309 mm.
Normal Geelong cumulative total (5 months) is 184.6 mm. Below average rainfall across region. 16 rain days. Very foggy on several days. Wettest day 28th (12.6 mm). Catchments 62 %. BoM predicts warmer and drier winter.
JUNE Fractionally warmer (by 0.1°C) than 30-yr average. Warmest max 17.4° on 20th, lowest min 2.2° on 11th. Generally settled weather. Av max 14.7 . June av max. is 14.5. Av min 6.4. Av is 6.4. Mean 10.5. Breakwater 8.4mm. Urban area averaged 12 mm. June normal is 47.3. Breakwater 318.8 mm.
Urban area 321 mm.
Normal Geelong cumulative total ( 6 months) is 231.9 mm. Well below average rainfall across all region. 12 wet days, no storms, no thunder days, no strong winds. Some fogs but no frosts. Catchments now 61% of capacity.
JULY Marginally warmer (by 0.1°C). Minimums were 0.5°< normal, incl 6 frosts. Coldest was -2.2° on 2nd. Maximums were 0.7°C > normal. Av max 14.7. July av max. is 14.0 . Av min 5.2. Av is 5.7. Mean 9.9. Breakwater 43.4 mm. Urban area averaged 40.0 mm. July normal is 44.5. Breakwater 362.2 mm.
Urban area 361 mm.
Normal Geelong cumulative total (7 months) is 276.4 mm. Slightly below av rainfall. 17 rain days, 1 thunder day (25th) and 1 strong wind day (69 kmh on 29th). Water catchments now 62% of capacity.
AUG Marginally warmer (by 0.1°C). Minimums 0.3° above normal, incl 3 consecutive frosts. Coldest min 0.7° on 2nd. At least 2 fogs & 4 very windy days (Max gust 80 km/h on 16th.) Av max 14.8 Aug av max. is 14.9. Av min 6.3. Av is 6.0. Mean 10.5 Breakwater 54.0 mm . Urban area averaged 52.0 mm. August normal 45.4. Breakwater 416.2 mm.
Urban area 413 mm.
Normal Geelong cumulative total ( 8 months) is 321.8 mm. Above av rainfall generally. 21 rain days. Water supply catchments 68% of capacity. 1 thunder-lightning day on 23rd, with small flash flooding at Leopold. 1 hail day on 27th.
SEPT Fractionally cooler (by 0.05° C). Lowest min 0.7 C on 1st. Warmest day 23.2 on 21st. Otways snow and local graupel on 5th. Av max 17.1 Sept av max. is 17.1. Av min 7.1. Av is 7.2. Mean 12.1 Breakwater 68.2 mm. Urban area averaged 60.0 mm. September normal is 49.1. Breakwater 484.4 mm.
Urban area 473 mm.
Normal Geelong cumulative total ( 9 months) is 370.9 mm. Well above av rain in Geelong & Otways. 1 thunder day on 15th.
Catchments 79% of cap. 1 frost (1st), 2 hail days, 8 very windy days incl 93 km/h on 4th.
OCT Warmer by 1.2°C. Lowest min 5.0 C on 15th, highest min 17.6 C on 19th. Lowest max 15.1 C on 21st, highest max 32.1 C on 18th. 2 days >30 C. Av max 20.6 Oct av max. is 19.3 . Av min 9.5. Av is 8.4. Mean 13.8 Breakwater 27.6 mm. Urban area averaged 28.0 mm. October normal is 52.3. Breakwater 512.0 mm.
Urban area 501 mm.
Normal Geelong cumulative total (10 months) is 423.3 mm. Well below average rain in whole region. Catchments 78%. 1 thunder day on 8th. 2 very windy days (11th & 29th); strongest wind gust 67 km/h on 29th.
NOV Warmest November on record. Top temp 35.4°C on 14th. 7 days >30°C. Low min 4.2°C on 5th. Warmest Nov min temp 22.1°C on 30th. Av max 24.6 Nov av max. is 21.3. Av min 12.9***. Av is 10.3. Mean 15.8 Breakwater 61.4 mm. Urban area averaged 50.0 mm. November normal is 52.4. Breakwater 573.4mm.
Urban area 551 mm.
Normal Geelong cumulative total ( 11 months) is 475.7 mm. Central Geelong above av rainfall – av to below av elsewhere. 8 thunder days, no strong wind gusts. 2 funnel clouds seen on 17th at Inverleigh and Winchelsea. Catchments 73%.
DEC Warmer by 1.6°C. Lowest min 8.6° on 5th; highest min 22.9° on 28th. Lowest max 16.1° on 2nd, highest max 38.6° on 13th. 4 days >30°. Av max 24.6
Dec av max. is 23.4. Av min 13.8. Av is 11.8. Mean 17.8 Breakwater 40.8 mm. Urban area averaged 40.0 mm. December normal is 41.9. Breakwater 614.2 mm.
Urban area 591 mm.
Normal Geelong cumulative total (12 months) is 517.6 mm. Bellarine Pen > average rain; Geelong average rain; Otways < average rain. 2 thunder days, 1 windy day. Most rain fell in first week. Catchments 71%.
*** Indicates a patched figure has been assigned by GWS owing to a malfunction of the BoM station or its transmission.
SUMMARY: New records and extremes set: 2 ; Year warmer by 0.8° C, Mean daily temp 15.3° (1986-2015 mean 14.5°C); Tornadoes: 2 funnel clouds; Hottest Day: 38.6° on 13 Dec; Warmest Night: 25.0° on 8 Jan; Coldest Day: 11.6° on 3 July; Coldest Night: -2.2° on 2 July; Wettest Day: 60 mm on 10 April); Wettest Month: April 152.0 mm; Driest Month: June 12 mm ; No of Days above 30°C: 32 (average 21); Number of “Thunder Days” in Urban area: 19 (11 in 2016); Number of severe storms: 3; Weather-related fatalities:0; Strongest Wind Gust: 93 kph on 4 Sept; Number of frosts: 10 (av = 15); Number of windy days (gusts >60kph): 20 (33 in 2016).
© Copyright Geelong Weather Services, 2017.