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Hay Long-term Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) |
33.6 | 33.1 | 28.8 | 24.2 | 19.1 | 15.6 | 14.9 | 17.1 | 20.7 | 23.9 | 28.6 | 31.0 | 24.1 |
| Mean Min (°C) |
17.4 | 17.2 | 13.1 | 9.3 | 5.9 | 3.7 | 3.2 | 4.0 | 6.5 | 8.6 | 12.3 | 14.7 | 9.6 |
| Mean Rain (mm) |
33.5 | 21.1 | 17.2 | 15.5 | 23.0 | 28.5 | 31.8 | 26.7 | 29.4 | 31.9 | 25.5 | 21.1 | 306.5 |
| Median Rain (mm) |
16.6 | 10.0 | 12.2 | 7.6 | 15.6 | 19.6 | 29.0 | 25.2 | 21.2 | 27.6 | 22.8 | 6.0 | 267.7 |
| Mean Rain Days |
3.8 | 3.2 | 2.9 | 3.2 | 6.8 | 9.1 | 10.9 | 7.6 | 5.8 | 5.5 | 4.2 | 3.7 | 63.6 |
Hay Daily Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) |
45.0 | 46.0 | 42.0 | 35.0 | 28.0 | 25.0 | 23.0 | 29.0 | 36.0 | 38.0 | 43.0 | 43.0 | 46.0 |
| Low Max (°C) |
19.0 | 20.0 | 16.0 | 15.0 | 10.0 | 9.0 | 9.0 | 10.0 | 13.0 | 11.0 | 15.0 | 20.0 | 9.0 |
| High Min (°C) |
31.0 | 31.0 | 26.0 | 23.0 | 17.0 | 15.0 | 10.0 | 16.0 | 19.0 | 23.0 | 25.0 | 27.0 | 31.0 |
| Low Min (°C) |
8.0 | 7.2 | 5.0 | 0.0 | -4.0 | -5.0 | -4.0 | -4.0 | -2.0 | 1.0 | 1.0 | 6.0 | -5.0 |
| High Rain (mm) |
49.0 | 37.0 | 24.0 | 21.0 | 27.0 | 51.0 | 22.0 | 23.4 | 22.0 | 31.0 | 31.0 | 29.0 | 51.0 |
Hay Monthly Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mn. Max (°C) |
36.7 | 36.0 | 30.0 | 28.0 | 21.2 | 17.0 | 17.2 | 19.5 | 22.8 | 26.6 | 30.8 | 33.0 | 24.9 |
| Low Mn. Max (°C) |
30.6 | 29.9 | 26.9 | 21.6 | 17.4 | 14.0 | 12.3 | 15.3 | 18.7 | 21.3 | 24.9 | 28.4 | 23.1 |
| High Mn. Min (°C) |
20.1 | 20.1 | 15.0 | 12.1 | 9.4 | 5.9 | 4.3 | 5.2 | 8.5 | 10.2 | 13.8 | 16.9 | 9.9 |
| Low Mn. Min (°C) |
14.4 | 14.4 | 10.9 | 7.1 | 3.5 | 0.8 | 1.0 | 2.6 | 4.9 | 6.5 | 9.1 | 12.5 | 9.2 |
| High Rain (mm) |
61.8 | 57.0 | 55.4 | 39.6 | 39.8 | 59.6 | 52.8 | 54.8 | 63.6 | 57.0 | 64.6 | 63.6 | 418.4 |
| Low Rain (mm) |
0.0 | 0.4 | 0.0 | 0.0 | 1.0 | 14.0 | 2.2 | 1.6 | 6.2 | 0.0 | 1.2 | 0.4 | 114.6 |
Hay Annual Temperatures & Rainfall
Hay Average Number of Days With Temperatures
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 40°C |
4.0 | 2.3 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 1.5 | 7.8 |
| ≥ 35°C |
11.8 | 10.5 | 4.0 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.5 | 3.9 | 6.9 | 31.9 |
| ≥ 30°C |
22.5 | 20.3 | 12.6 | 3.3 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 3.0 | 11.5 | 13.6 | 73.7 |
| ≤ 2°C |
0.0 | 0.0 | 0.0 | 1.3 | 7.0 | 11.0 | 12.0 | 10.7 | 4.1 | 0.9 | 0.1 | 0.0 | 39.9 |
| ≤ 0°C |
0.0 | 0.0 | 0.0 | 0.2 | 2.5 | 5.9 | 7.1 | 5.3 | 1.3 | 0.0 | 0.0 | 0.0 | 18.8 |
Hay 'per Week' Values (14th/86th Percentiles)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max |
39.0 | 38.0 | 34.0 | 29.0 | 23.0 | 18.0 | 18.0 | 21.0 | 26.0 | 29.0 | 35.0 | 37.0 | 34.0 |
| Low Max |
28.0 | 28.0 | 23.0 | 19.0 | 15.2 | 13.0 | 12.0 | 14.0 | 16.0 | 19.0 | 22.0 | 25.0 | 15.0 |
| High Min |
23.0 | 22.0 | 18.0 | 14.0 | 11.0 | 8.0 | 7.0 | 8.0 | 11.0 | 14.0 | 18.0 | 20.8 | 17.0 |
| Low Min |
12.0 | 12.0 | 9.0 | 5.0 | 1.0 | -1.0 | -1.0 | 0.0 | 2.0 | 4.0 | 7.0 | 10.0 | 2.0 |
Hay Data Availability
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years of Minima |
10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9.7 |
| Earliest Entry |
1997 | 1997 | 1997 | 1995 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1996 | 1995 |
| Latest Entry |
2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2006 | 2006 | 2006 | 2007 |
| Years of Maxima |
10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9.7 |
| Earliest Entry |
1997 | 1997 | 1997 | 1995 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1996 | 1995 |
| Latest Entry |
2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2006 | 2006 | 2006 | 2007 |
| Years of Rainfall |
11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 11.2 |
| Earliest Entry |
1995 | 1995 | 1996 | 1995 | 1995 | 1994 | 1994 | 1994 | 1994 | 1994 | 1994 | 1994 | 1994 |
| Latest Entry |
2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2007 | 2006 | 2006 | 2006 | 2007 |
Station Details
HAY CSIRO AWS
Riverina, New South Wales/ACT
Riverina, New South Wales/ACT
34.5471°S 144.8670°E
90m AMSL
Commenced 1989 / Closed 2007
Commenced 1989 / Closed 2007
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Nature?s air conditioner: how the seabreeze will help Sydney cope during the heatwave
14:37 AEDT As heatwave conditions take hold of southeastern Australia this weekend, the cooling seabreeze will be crucial in easing daytime heat, but how does it form? During periods with weak synoptic forcing, with a broad high pressure system moving slowly over the Tasman Sea, the seabreeze circulation dominates, as we can see below.
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