Grafton Long-term Averages

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Mean Max (°C)
30.1 29.4 28.2 26.2 23.1 20.8 20.5 22.1 24.9 26.8 28.2 29.6 25.8
Mean Min (°C)
19.8 19.6 18.0 14.9 11.3 8.1 6.4 7.3 10.5 13.8 16.4 18.5 13.7
Mean Rain (mm)
141.3 150.8 129.4 88.4 79.5 67.5 38.1 40.9 37.9 76.5 104.5 121.5 1077.1
Median Rain (mm)
133.0 125.2 106.6 48.4 44.0 33.3 24.6 17.0 22.1 54.8 87.3 107.2 1036.4
Mean Rain Days
14.1 14.6 15.6 12.2 14.3 11.5 9.9 9.2 9.2 10.4 12.6 13.1 142.0

Grafton Daily Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max (°C)
43.8 42.1 39.0 36.7 31.7 30.5 28.2 36.3 38.3 39.3 43.8 43.4 43.8
Low Max (°C)
20.4 20.5 19.4 17.8 13.9 13.7 12.3 12.6 13.7 15.3 16.7 18.5 12.3
High Min (°C)
27.4 25.5 23.4 21.9 19.8 17.2 16.4 17.6 19.3 21.0 23.5 25.4 27.4
Low Min (°C)
12.8 12.7 10.8 3.6 0.5 -2.0 -2.2 -0.2 1.8 3.9 6.7 7.0 -2.2
High Rain (mm)
131.4 230.0 274.3 134.6 172.6 182.9 96.4 111.3 56.1 98.6 112.5 112.4 274.3

Grafton Monthly Records

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Mn. Max (°C)
32.3 31.9 32.0 28.6 25.8 22.8 22.2 25.1 28.3 30.4 31.8 33.4 27.3
Low Mn. Max (°C)
27.5 26.5 25.6 24.4 21.8 19.4 18.3 19.9 22.2 24.0 25.6 26.2 24.8
High Mn. Min (°C)
21.6 21.8 19.6 16.9 14.3 12.1 10.6 10.6 13.1 15.8 19.1 20.6 14.8
Low Mn. Min (°C)
18.1 18.1 16.5 12.5 8.6 5.7 2.6 5.2 8.5 11.5 14.1 16.0 12.3
High Rain (mm)
326.4 455.6 549.0 512.1 430.4 436.7 193.6 193.0 102.4 390.1 278.6 300.3 1583.7
Low Rain (mm)
11.4 24.7 12.3 12.8 4.0 0.9 0.3 1.6 0.4 8.1 18.2 25.6 574.4

Grafton Annual Temperatures & Rainfall

Grafton annual climate

Grafton Average Number of Days With Temperatures

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
≥ 40°C
0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.3 0.7
≥ 35°C
2.4 1.0 0.5 0.1 0.0 0.0 0.0 0.0 0.2 1.0 1.8 2.9 9.6
≥ 30°C
15.1 11.0 7.6 2.1 0.1 0.0 0.0 0.3 2.5 6.3 9.4 14.0 66.5
≤ 2°C
0.0 0.0 0.0 0.0 0.1 1.0 3.2 0.9 0.0 0.0 0.0 0.0 5.1
≤ 0°C
0.0 0.0 0.0 0.0 0.0 0.1 0.7 0.1 0.0 0.0 0.0 0.0 0.9

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

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
High Max
33.6 32.6 31.1 28.8 25.6 23.1 22.7 24.7 28.5 31.0 32.5 33.7 30.8
Low Max
26.7 26.3 25.4 23.6 20.7 18.5 18.3 19.4 21.4 22.6 24.0 25.7 20.7
High Min
21.8 21.8 20.2 17.8 15.0 12.0 10.5 11.0 14.0 17.0 19.0 21.0 19.6
Low Min
17.4 17.5 15.8 12.0 7.4 4.2 2.6 3.8 6.7 10.4 13.3 15.8 6.7

Grafton Data Availability

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Years of Minima
48 46 48 46 46 48 48 48 49 49 49 49 47.8
Earliest Entry
1967 1967 1967 1967 1967 1967 1967 1967 1966 1966 1966 1966 1966
Latest Entry
2015 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2015
Years of Maxima
48 47 48 48 47 48 48 48 49 49 49 49 48.1
Earliest Entry
1967 1967 1967 1967 1967 1967 1967 1967 1966 1966 1966 1966 1966
Latest Entry
2015 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2015
Years of Rainfall
49 48 48 48 48 48 48 48 49 49 49 49 48.4
Earliest Entry
1967 1967 1967 1967 1967 1967 1967 1967 1966 1966 1966 1966 1966
Latest Entry
2015 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2014 2015

Station Details

GRAFTON OLYMPIC POOL
Northern Rivers, New South Wales/ACT
29.6823°S 152.9278°E 9m AMSL
Commenced 1966 / Closed 2015

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