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Derby Ap Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
35.2 34.3 35.1 35.4 32.8 30.4 30.7 32.6 35.2 37.0 38.0 37.1 34.5
Mean Min (°C)
25.7 25.4 25.0 22.8 18.9 15.6 14.8 16.2 19.6 23.0 25.4 26.3 21.5
Mean Rain (mm)
205.4 208.5 146.5 21.5 17.0 6.5 6.3 0.8 1.1 3.3 10.9 70.9 680.8
Median Rain (mm)
163.3 177.3 73.3 5.0 0.0 0.0 0.0 0.0 0.0 0.0 2.3 46.3 656.2
Mean Rain Days
13.1 12.6 10.2 2.9 1.5 1.0 0.6 0.2 0.1 0.9 2.0 7.1 45.6

Derby Ap Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
44.0 43.8 41.8 40.3 39.2 36.6 35.9 38.6 42.1 43.7 44.6 44.9 44.9
Low Max (°C)
26.0 25.8 26.6 22.0 19.1 20.4 20.3 20.6 21.2 29.4 28.3 26.4 19.1
High Min (°C)
30.3 29.4 29.1 28.1 26.7 24.8 23.6 24.5 27.4 28.6 29.1 30.9 30.9
Low Min (°C)
20.2 19.2 19.3 13.7 9.1 6.4 6.0 7.7 9.1 11.7 19.8 18.5 6.0
High Rain (mm)
294.4 255.3 159.0 66.0 105.0 39.8 78.6 19.0 27.4 21.0 38.0 126.8 294.4

Derby Ap Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
38.2 38.6 38.0 37.7 34.9 32.3 31.9 34.5 37.4 38.6 39.5 39.3 35.6
Low Mn. Max (°C)
31.7 32.0 32.5 32.3 29.6 28.0 27.8 30.3 32.8 35.4 36.2 34.7 33.3
High Mn. Min (°C)
26.8 26.8 26.2 24.9 21.9 18.6 18.4 20.2 21.9 25.8 26.7 27.2 22.9
Low Mn. Min (°C)
24.4 24.1 23.6 20.7 15.0 11.9 11.2 13.8 16.6 20.8 23.0 25.4 19.9
High Rain (mm)
703.2 445.4 689.2 93.6 132.0 88.6 153.0 19.2 40.4 44.0 74.4 233.4 1250.2
Low Rain (mm)
8.5 16.1 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 78.7

Derby Ap Annual Temperatures & Rainfall

Derby Ap annual climate

Derby Ap Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
1.0 0.6 0.3 0.0 0.0 0.0 0.0 0.0 0.6 3.1 5.3 3.9 14.2
≥ 35°C
17.4 11.0 16.8 18.8 6.1 0.4 0.4 3.7 16.0 25.0 27.6 25.1 161.9
≥ 30°C
28.2 26.1 29.1 28.5 27.3 17.7 20.5 28.0 29.1 30.3 29.3 30.0 312.4
≤ 2°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
≤ 0°C
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

Derby Ap 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
38.2 37.6 37.8 37.5 35.5 32.8 32.8 34.8 37.8 39.4 40.2 39.7 38.1
Low Max
32.0 31.5 32.5 33.7 30.4 28.0 28.4 30.5 32.6 34.5 35.9 34.2 30.8
High Min
27.8 27.2 26.6 25.5 22.5 19.5 18.6 19.6 22.6 25.6 27.3 28.1 26.5
Low Min
23.6 23.7 23.2 19.7 15.2 11.7 11.0 12.8 16.7 20.4 23.5 24.1 15.5

Derby Ap Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
25 27 26 27 27 26 27 26 27 26 26 25 26.3
Earliest Entry
1973 1973 1973 1972 1972 1972 1972 1972 1972 1972 1972 1972 1972
Latest Entry
2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012
Years of Maxima
26 27 26 27 27 26 27 27 27 26 26 26 26.4
Earliest Entry
1973 1973 1973 1972 1972 1972 1972 1972 1972 1972 1972 1972 1972
Latest Entry
2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012
Years of Rainfall
51 51 51 52 52 53 54 55 55 53 51 51 52.2
Earliest Entry
1952 1952 1951 1951 1951 1951 1951 1951 1951 1951 1951 1951 1951
Latest Entry
2012 2012 2012 2012 2011 2011 2011 2011 2011 2011 2011 2011 2012

Station Details

DERBY AERO
Kimberley, Western Australia
17.3706°S 123.6611°E 6m AMSL
Commenced 1951

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Frosty night across southern NSW and ACT

11:40 EST Southern New South Wales and the ACT had a chilly start to the weekend, with some places seeing their coldest May night in half a decade.

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