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Grafton Long-term Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) |
30.5 | 30.0 | 28.2 | 25.8 | 23.2 | 20.8 | 20.8 | 22.7 | 25.5 | 27.3 | 28.8 | 29.8 | 26.0 |
| Mean Min (°C) |
19.8 | 19.5 | 18.2 | 15.0 | 11.1 | 8.7 | 7.5 | 8.0 | 11.2 | 14.0 | 16.5 | 18.3 | 13.9 |
| Mean Rain (mm) |
146.8 | 127.0 | 127.0 | 85.6 | 73.5 | 71.4 | 40.0 | 37.6 | 39.6 | 68.5 | 86.9 | 110.7 | 1007.8 |
| Median Rain (mm) |
141.1 | 68.2 | 93.5 | 74.9 | 39.1 | 51.2 | 19.6 | 19.6 | 21.9 | 43.5 | 73.5 | 77.8 | 933.8 |
| Mean Rain Days |
12.6 | 11.9 | 15.0 | 10.7 | 10.3 | 9.7 | 7.8 | 6.1 | 6.5 | 8.6 | 9.4 | 12.1 | 121.6 |
Grafton Daily Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) |
44.6 | 46.3 | 39.4 | 33.7 | 30.4 | 30.4 | 27.6 | 36.2 | 38.6 | 41.0 | 42.9 | 42.5 | 46.3 |
| Low Max (°C) |
20.4 | 20.6 | 20.0 | 17.7 | 15.6 | 14.0 | 13.2 | 14.6 | 15.6 | 14.3 | 18.3 | 18.2 | 13.2 |
| High Min (°C) |
28.6 | 24.6 | 23.0 | 20.7 | 20.2 | 16.3 | 17.7 | 17.8 | 19.0 | 20.7 | 22.8 | 23.7 | 28.6 |
| Low Min (°C) |
13.4 | 8.4 | 10.1 | 5.0 | 1.1 | -0.8 | -1.9 | -0.2 | 3.2 | 4.6 | 6.2 | 9.5 | -1.9 |
| High Rain (mm) |
126.5 | 252.0 | 103.4 | 113.8 | 226.1 | 128.4 | 137.2 | 99.8 | 109.0 | 91.0 | 131.1 | 132.0 | 252.0 |
Grafton Monthly Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mn. Max (°C) |
33.5 | 33.3 | 31.6 | 27.9 | 26.6 | 22.2 | 22.6 | 25.1 | 28.7 | 29.9 | 31.9 | 32.8 | 27.8 |
| Low Mn. Max (°C) |
27.7 | 27.5 | 26.2 | 24.2 | 21.5 | 19.3 | 19.3 | 21.2 | 23.3 | 23.8 | 25.6 | 25.7 | 24.5 |
| High Mn. Min (°C) |
21.7 | 20.8 | 19.4 | 16.2 | 14.9 | 10.9 | 9.0 | 9.9 | 12.9 | 16.4 | 18.4 | 19.6 | 14.5 |
| Low Mn. Min (°C) |
18.2 | 17.4 | 16.4 | 13.2 | 9.1 | 6.3 | 5.7 | 5.7 | 10.0 | 12.3 | 14.6 | 16.4 | 13.2 |
| High Rain (mm) |
308.4 | 502.4 | 394.8 | 257.0 | 516.9 | 219.6 | 270.1 | 189.2 | 166.1 | 239.8 | 292.5 | 512.8 | 1740.9 |
| Low Rain (mm) |
7.0 | 0.0 | 16.2 | 8.8 | 0.0 | 0.0 | 1.6 | 0.0 | 0.0 | 0.0 | 0.0 | 6.0 | 300.8 |
Grafton Annual Temperatures & Rainfall
Grafton 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 | 0.1 | 0.3 | 0.5 | 1.2 |
| ≥ 35°C |
3.0 | 2.2 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 1.3 | 2.4 | 3.1 | 12.6 |
| ≥ 30°C |
17.1 | 13.5 | 7.7 | 1.1 | 0.1 | 0.0 | 0.0 | 0.6 | 3.7 | 7.7 | 10.7 | 13.5 | 73.4 |
| ≤ 2°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.6 | 1.2 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 2.5 |
| ≤ 0°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 |
Grafton 'per Week' Values (14th/86th Percentiles)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max |
34.1 | 32.5 | 30.1 | 28.0 | 25.3 | 23.1 | 23.1 | 25.7 | 29.7 | 32.2 | 32.8 | 34.1 | 31.1 |
| Low Max |
26.7 | 26.4 | 25.2 | 23.4 | 21.0 | 18.2 | 18.4 | 19.5 | 21.8 | 22.6 | 24.5 | 26.0 | 20.8 |
| High Min |
22.0 | 21.5 | 19.3 | 17.3 | 14.0 | 12.5 | 11.0 | 11.4 | 14.7 | 17.1 | 19.3 | 20.8 | 19.5 |
| Low Min |
17.2 | 17.9 | 15.6 | 12.2 | 7.0 | 4.8 | 3.9 | 4.3 | 8.1 | 10.7 | 13.6 | 15.7 | 7.3 |
Grafton Data Availability
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years of Minima |
20 | 22 | 21 | 19 | 19 | 20 | 20 | 20 | 21 | 22 | 20 | 21 | 20.0 |
| Earliest Entry |
2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2002 | 2002 | 2002 | 2002 | 2002 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2024 |
| Years of Maxima |
20 | 22 | 22 | 20 | 20 | 21 | 21 | 20 | 22 | 22 | 21 | 22 | 21.0 |
| Earliest Entry |
2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2002 | 2002 | 2002 | 2002 | 2002 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2024 |
| Years of Rainfall |
33 | 35 | 33 | 33 | 35 | 35 | 33 | 33 | 35 | 34 | 31 | 29 | 32.0 |
| Earliest Entry |
1918 | 1918 | 1917 | 1917 | 1917 | 1917 | 1917 | 1917 | 1917 | 1918 | 1917 | 1917 | 1917 |
| Latest Entry |
2024 | 2024 | 2024 | 2024 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2023 | 2024 |
Station Details
GRAFTON RESEARCH STN
Northern Rivers, New South Wales/ACT
Northern Rivers, New South Wales/ACT
29.6224°S 152.9605°E
25m AMSL
Commenced 1917
Commenced 1917
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