Grafton Airport Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
30.3 29.8 28.3 25.7 23.1 20.7 20.6 22.6 24.9 26.8 28.4 29.3 25.9
Mean Min (°C)
19.1 18.9 17.7 13.8 9.4 6.9 5.3 6.0 9.7 12.9 15.8 17.5 12.7
Mean Rain (mm)
125.2 168.1 177.3 85.2 71.0 79.9 33.1 52.5 48.4 71.5 98.3 127.9 1125.2
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
13.4 14.3 16.8 13.3 12.9 12.6 10.3 7.5 8.7 9.8 12.5 13.4 145.0

Grafton Airport Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
41.3 45.8 37.2 32.4 29.6 29.7 27.7 36.3 38.3 39.7 42.8 41.3 45.8
Low Max (°C)
21.4 20.2 20.0 18.0 15.3 13.9 13.1 14.9 16.1 17.0 19.0 18.8 13.1
High Min (°C)
25.6 24.9 22.9 20.5 20.6 16.6 15.9 16.1 19.1 20.6 23.1 23.8 25.6
Low Min (°C)
10.8 12.4 9.6 0.4 -1.5 -1.8 -3.4 -2.8 0.1 3.2 6.0 8.6 -3.4
High Rain (mm)
155.0 242.4 410.0 85.4 137.0 149.0 41.0 129.8 80.4 105.4 53.8 230.0 410.0

Grafton Airport Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
32.7 32.7 30.6 27.3 25.7 22.0 21.9 24.5 27.1 29.3 31.0 32.4 27.3
Low Mn. Max (°C)
27.9 27.4 26.9 24.4 21.9 19.4 19.6 21.2 23.4 23.7 25.9 25.9 24.9
High Mn. Min (°C)
20.8 20.5 18.8 15.4 14.4 9.5 7.4 7.7 11.7 15.8 17.7 19.1 13.3
Low Mn. Min (°C)
17.6 17.7 15.3 11.6 6.6 4.5 2.5 3.1 8.3 10.8 14.0 15.3 12.1
High Rain (mm)
388.8 505.8 596.8 175.4 314.8 232.2 143.8 214.0 195.4 336.6 235.4 379.2 1650.2
Low Rain (mm)
2.4 0.2 20.4 25.0 5.8 3.8 0.4 0.4 0.2 2.4 6.4 9.2 379.8

Grafton Airport Annual Temperatures & Rainfall

Grafton Airport annual climate

Grafton Airport Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.3 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 0.8
≥ 35°C
2.7 2.1 0.7 0.0 0.0 0.0 0.0 0.1 0.1 0.9 2.1 2.1 10.8
≥ 30°C
16.3 12.6 7.7 0.7 0.0 0.0 0.0 0.3 2.8 6.7 9.2 12.9 68.9
≤ 2°C
0.0 0.0 0.0 0.1 0.6 3.2 6.4 4.2 0.2 0.0 0.0 0.0 14.8
≤ 0°C
0.0 0.0 0.0 0.0 0.1 0.6 1.9 1.1 0.0 0.0 0.0 0.0 3.6

Grafton Airport '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 Airport Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
18 18 18 18 18 18 18 18 18 18 18 18 17.0
Earliest Entry
2007 2007 2007 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Maxima
18 18 18 18 18 18 18 18 18 18 18 18 17.0
Earliest Entry
2007 2007 2007 2006 2006 2006 2006 2006 2006 2006 2006 2006 2006
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024
Years of Rainfall
25 25 25 25 24 23 23 24 23 23 22 24 23.0
Earliest Entry
1999 1999 1999 1993 1999 1999 1999 1992 1999 1999 1999 1999 1992
Latest Entry
2024 2024 2024 2024 2023 2023 2023 2023 2023 2023 2023 2023 2024

Station Details

GRAFTON AIRPORT AWS
Northern Rivers, New South Wales/ACT
29.7583°S 153.0297°E 26m AMSL
Commenced 1973

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