• Average maximum temperature was 2nd highest on record at 23.9°C.
• Average minimum temperature was 3rd highest on record at 14.8°C
• There were 10 hot days (temperature exceeds 30°C). Historic average is 4 hot days.
• Close to average rainfall and sunshine.

The total monthly rainfall of 253.8 mm at Observatory Hill was slightly above the historic spring average of 230.0 mm. There were 25 rain days, which is slightly below the historic average of 33 rain days.  Most of the rain fell during September (192.2 mm) with October and November receiving below average rainfall. Most of the metropolitan area received above average rainfall during spring except for the far south-western suburbs which recorded significantly below average rainfall. Spring totals of around 300 mm were recorded in some northern suburbs (highest 306.8 mm at West Pymble) while in some western suburbs totals were less than 150 mm (lowest 107 mm at Willmot). 

 

It was the second warmest spring on record in Sydney.  The warmest was in 2002.   The average maximum (daytime) temperature at Observatory Hill was 23.9°C, well above the historic average¹ of 22.1°C and ranking 2nd warmest since records commenced in 1859.  The average maximum in the western suburbs was about 2°C warmer than coastal suburbs due mainly to the absence of cooling sea-breezes.  There were 10 hot days (temperature exceeding 30°C) at Observatory Hill during spring compared to an historic average of 4 days. However, in the western suburbs, Richmond recorded 23 hot days (historic average 13 days).

Average minimum (night-time) temperatures were generally above the historic average over Sydney except for the far western suburbs were they were slightly below the historic spring average. The average minimum at Observatory Hill of 14.8°C was 1.0°C above the historic average and ranks as the 3rd highest on record (records since 1859).  However, at Richmond the average minimum of 10.6°C was 0.3°C below the historic average and about 4°C cooler than coastal suburbs.

The highest temperature at Sydney Observatory Hill during spring was 38.4°C on 22 November while the lowest temperature was only 6 days earlier with 8.3°C on 16 November (the lowest temperature in November since 1905).  Corresponding extremes across the Sydney metropolitan area ranged from 40.9°C at Penrith on 21 November to 2.3°C at Camden on 29 October.

Sunshine hours were slightly above average during spring.  There were 6thunderstorms during the season (historic average 8 storms).  Although local flooding occurred in parts of Sydney early in September, major bushfires were reported around Sydney on 24 September when strong winds caused power outages to 100 000 homes in the south-west. Winds reached 109 km/h at Camden. Further bushfires west of Sydney toward the end of November caused thick smoke haze over the metropolitan area reducing visibility to 5 km at times.

 

* recorded at Sydney Airport.  Windy day defined as average speed of 40km/h or more at synoptic times.

¹Averages: Historic average temperatures for Observatory Hill and Richmond are based on the period 1961 to 1990 which is a convention of the World Meteorological Organisation.  Average temperatures for Parramatta are based on all available data, 1968 - 2005 and Camden 1972 - 2005.  Rainfall averages and extremes for Observatory Hill are based on all years of record 1859 - 2005.

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