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Grafton Climate

Grafton Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
29.7 29.3 27.9 25.6 23.0 20.4 20.4 22.3 25.0 26.7 28.2 28.6 25.5
Mean Min (°C)
18.9 18.7 17.2 13.6 8.7 6.9 5.0 5.9 9.8 12.6 16.2 17.4 12.4
Mean Rain (mm)
130.1 168.5 171.2 90.2 72.2 83.0 35.4 63.1 47.9 70.1 121.4 115.3 1173.9
Median Rain (mm)
83.0 108.2 110.6 62.2 48.8 55.0 26.3 23.0 36.7 53.7 132.4 96.2 1149.5
Mean Rain Days
13.1 14.0 15.9 12.3 12.5 12.9 9.9 7.8 9.2 8.7 12.8 13.9 116.9

Grafton Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
41.2 37.6 36.7 31.5 29.6 24.7 26.4 36.3 32.8 38.6 42.8 40.3 42.8
Low Max (°C)
21.4 22.5 21.2 18.5 15.4 13.9 13.1 16.4 16.1 17.4 19.0 19.9 13.1
High Min (°C)
24.4 23.8 21.7 20.5 18.1 16.6 15.0 16.1 16.9 19.3 23.1 22.1 24.4
Low Min (°C)
10.8 13.4 9.6 0.4 0.2 -1.8 -3.4 -2.2 0.1 3.2 6.7 8.6 -3.4
High Rain (mm)
111.0 242.4 410.0 61.6 137.0 108.8 38.8 129.8 49.4 105.4 53.8 230.0 410.0

Grafton Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
31.8 30.8 28.6 27.0 24.8 22.0 21.0 24.5 27.1 28.9 30.5 30.3 26.4
Low Mn. Max (°C)
27.9 27.4 27.0 24.4 21.9 19.4 19.6 21.2 23.9 23.7 25.9 25.9 24.9
High Mn. Min (°C)
19.8 19.8 18.1 14.8 10.8 8.6 7.1 7.5 11.7 14.3 17.7 18.7 13.3
Low Mn. Min (°C)
18.0 18.0 15.3 11.6 6.6 5.4 2.5 3.1 8.3 11.2 14.7 15.6 12.1
High Rain (mm)
388.8 375.8 596.8 175.4 314.8 218.8 143.8 214.0 109.6 336.6 235.4 295.0 1462.4
Low Rain (mm)
16.8 14.2 20.4 33.1 19.4 6.6 0.4 1.0 20.8 2.4 42.0 9.2 648.2

Grafton Annual Temperatures & Rainfall

GRAFTON AIRPORT AWS

Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall

Grafton Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40.0°C
0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.4
≥ 35.0°C
2.3 1.1 0.3 0.0 0.0 0.0 0.0 0.1 0.0 0.8 1.9 0.9 6.9
≥ 30.0°C
14.3 10.4 5.5 0.4 0.0 0.0 0.0 0.3 2.2 6.8 8.6 10.3 55.4
≤ 2.0°C
0.0 0.0 0.0 0.1 0.7 3.8 7.1 4.9 0.2 0.0 0.0 0.0 16.8
≤ 0.0°C
0.0 0.0 0.0 0.0 0.0 0.8 2.4 1.2 0.0 0.0 0.0 0.0 4.4

Grafton 'per Week' Values (14th/86th Percentiles)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
33.0 32.1 30.2 27.8 25.2 22.5 22.5 25.3 28.5 30.5 32.1 31.1 30.1
Low Max
26.5 26.5 25.7 23.3 21.0 17.8 18.0 19.5 21.1 22.1 24.0 24.6 20.4
High Min
21.2 21.1 19.7 16.5 13.4 12.1 9.4 11.6 14.1 16.7 18.9 19.9 18.8
Low Min
16.3 16.9 14.4 9.9 4.3 2.3 1.2 1.6 6.2 8.8 13.7 14.0 4.8

Grafton Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
8 8 8 9 9 9 9 9 9 9 9 9 8.7
Earliest Entry
2007 2007 2007 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006
Latest Entry
2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014
Years of Maxima
8 8 8 9 9 9 9 9 9 9 9 9 8.7
Earliest Entry
2007 2007 2007 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006
Latest Entry
2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014
Years of Rainfall
15 15 15 16 15 14 14 15 14 14 13 15 14.5
Earliest Entry
1999 1999 1999 1993 1999 1999 1999 1992 1999 1999 1999 1999 1992
Latest Entry
2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014

Station Details

GRAFTON AIRPORT AWS
Northern Rivers, New South Wales/ACT
29.7583°S 153.0297°E 25m AMSL
Commenced 1973
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