Monday, 1 December 2008 - Seasonal Climate Summary for Canberra area - Product code IDCKGC2xx0

Canberra area in spring 2008
A warm, dry and sunny spring for Canberra

Summary

  • Plentiful sunshine
  • Slightly below average rainfall
  • Above average maximum and minimum temperatures

An archive of previous seasonal summaries for Canberra area is also available, as are summaries for other states and many other climate summaries and diagnostics.

Rainfall

The total spring rainfall of 159.4 mm at Canberra Airport was slightly below the historical spring average1 of 178.6  mm. This is the 3rd consecutive spring with below average rainfall for Canberra Airport, however, it marks the highest spring rainfall total since 2005 (245.0 mm).

Much of Canberra Airport's spring rainfall fell in November (85.0 mm), with September and October recording below average rainfall (40.8 mm and 33.6 mm respectively).

See a map of total rainfall. See a map of rainfall deciles.

Temperature

The average1 maximum temperature for spring at Canberra Airport was 21.5°C, which is above the historical average of 19.4°C. This is the 5th consecutive spring with above average maximum temperatures at Canberra Airport, but is slightly cooler than spring 2007 (21.8 degs). The warm spring temperature was a result of higher than average maximum temperatures recorded in all spring months, particularly October, where temperatures were 3 - 4 degrees above average.

The average minimum temperature for spring at Canberra Airport was 7.2°C, which is above the historical average of 6.0°C,. This resulted from the higher than average minimums recorded during each month of spring, particularly October and November, which recorded minimum temperatures 1 - 2 degrees above average. Spring 2008 marks the 14th consecutive spring with above average minimum temperature at Canberra Airport.

See a map of mean maximum temperatures. See a map of maximum temperature anomalies.

See a map of mean minimum temperatures. See a map of minimum temperature anomalies.

Wind

The prevailing spring winds at Canberra Airport were close to the long term averages. During the mornings (9am) the prevailing wind was from the NW for 20% of the time, compared to the expected 22%. During the afternoons (3pm) the prevailing wind direction was from the NW quadrant, accounting for 64% of the observations (from W through to N), which is close to what is expected for this season.

The number of days with strong winds observed during spring was 13, slightly higher than the historical spring average of 11. October was the windiest month, recording 5 strong wind days, followed by 4 days in September and 4 in November.

Other phenomena

There were 8thunderstorms (average 8) and 1 hail day (average 3) reported at Canberra Airport during spring. Bright sunshine average 9.0 hours per day, which is higher than the historical average of 8.4 hours per day. October was the sunniest month of the season, recording an average of 9.9 hours of sunshine per day.

Further information

NSW Climate Services Centre
NSW Regional Office
Bureau of Meteorology
Phone (02) 9296 1555
Email reqnsw@bom.gov.au

Extremes

Hottest day
Highest temperature
32.9°C at Canberra Airport on 14 Nov
Warmest days on average
Highest mean daily maximum temperature
21.5°C at Canberra Airport
21.5°C at Tuggeranong (Isabella Plains) AWS
12.2°C at Mount Ginini AWS
Coolest days on average
Lowest mean daily maximum temperature
12.2°C at Mount Ginini AWS
21.5°C at Canberra Airport
21.5°C at Tuggeranong (Isabella Plains) AWS
Coldest day
Lowest daily maximum temperature
−1.0°C at Mount Ginini AWS on 22 Nov
Coldest night
Lowest temperature

−5.0°C at Mount Ginini AWS on 16 Sep
−4.4°C at Tuggeranong (Isabella Plains) AWS on 11 Sep

Coolest nights on average
Lowest mean daily minimum temperature
2.7°C at Mount Ginini AWS
6.8°C at Tuggeranong (Isabella Plains) AWS
7.2°C at Canberra Airport
Warmest nights on average
Highest mean daily minimum temperature
7.2°C at Canberra Airport
Warmest night
Highest daily minimum temperature
16.8°C at Canberra Airport on 3 Oct
Wettest overall
Highest total rainfall
267.8 mm at Mount Ginini AWS
261.4 mm at Canberra (Corin Dam (Boat Ramp))
Wettest day
Highest daily rainfall
55.0 mm at Mount Ginini AWS on 23 Sep
47.8 mm at Canberra (Corin Dam (Boat Ramp)) on 23 Sep
Highest wind gust
98 km/h at Canberra Airport on 15 Sep

Records

Nil recorded


Summaries

This table is very wide and may not fit if printed.

Summary statistics for spring 2008
Maximum temperatures
for spring
(°C)
Minimum temperatures
for spring
(°C)
Rainfall
for spring
(millimetres)
Mean for
spring
2008
Diff
from
average
Highest for
spring
2008
Mean for
spring
2008
Diff
from
average
Lowest for
spring
2008
Total for
spring
2008
Average
for
spring
Rank of
spring
2008
Fraction of
spring
average
Southern Tablelands (Goulburn-Monaro) (district 70)
Canberra Airport 21.5 +2.2 32.9 14 Nov 7.2 +1.2 −3.7 9 Sep 159.4 179.0 average 89%
Mount Ginini AWS 12.2   22.0 14 Nov 2.7   −5.0 16 Sep 267.8
Tuggeranong 21.5 +0.8 32.3 14 Nov 6.8 +0.3 −4.4 11 Sep 134.8 176.8 low 76%

Notes

This statement has been prepared based on information available at 10 am on Monday 1 December 2008. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

1Averages:  historical average temperatures and rainfall are based on all available records.

Normals are long-term means based on observations from all available years of record, which vary widely from site to site. They are not shown for sites with less than 20 years of record, as they cannot then be calculated reliably.

The Rank indicates how rainfall this time compares with the climate record for the site, based on the decile ranking (very low rainfall is in decile 1, low in decile 2 or 3, normal in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of normal shows how much rain has fallen this time as a percentage of the long-term mean.

Further information

NSW Climate Services Centre
NSW Regional Office
Bureau of Meteorology
Phone (02) 9296 1555
Email reqnsw@bom.gov.au