Shannon Climate
Shannon Long-term Averages
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) |
26.3 | 26.7 | 24.7 | 21.3 | 18.2 | 15.8 | 14.8 | 15.4 | 16.5 | 18.8 | 22.0 | 24.6 | 20.4 |
| Mean Min (°C) |
12.6 | 13.5 | 12.6 | 10.8 | 9.0 | 7.6 | 6.7 | 6.9 | 7.3 | 8.4 | 10.0 | 11.3 | 9.7 |
| Mean Rain (mm) |
19.9 | 21.3 | 33.8 | 68.8 | 123.1 | 152.3 | 183.1 | 150.6 | 120.8 | 73.4 | 51.1 | 33.5 | 1022.9 |
| Median Rain (mm) |
10.8 | 10.8 | 19.4 | 43.4 | 116.4 | 150.6 | 143.6 | 150.9 | 132.8 | 63.2 | 45.4 | 15.5 | 994.4 |
| Mean Rain Days |
8.3 | 7.3 | 9.6 | 15.9 | 20.3 | 21.5 | 23.6 | 23.0 | 20.6 | 17.2 | 13.5 | 9.9 | 190.6 |
Shannon Daily Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) |
41.0 | 39.2 | 41.0 | 33.1 | 29.0 | 22.3 | 21.0 | 24.8 | 28.0 | 30.4 | 38.0 | 41.0 | 41.0 |
| Low Max (°C) |
15.7 | 16.3 | 11.0 | 10.9 | 9.6 | 8.8 | 9.5 | 8.0 | 10.0 | 11.0 | 13.0 | 15.0 | 8.0 |
| High Min (°C) |
21.0 | 24.0 | 23.0 | 19.0 | 19.0 | 14.0 | 13.9 | 13.8 | 15.5 | 16.5 | 20.0 | 21.0 | 24.0 |
| Low Min (°C) |
4.0 | 6.0 | 3.0 | 2.0 | 0.0 | -2.0 | -1.0 | 0.0 | 0.3 | 1.0 | 1.0 | 3.0 | -2.0 |
| High Rain (mm) |
27.0 | 55.4 | 35.0 | 62.0 | 80.0 | 46.0 | 47.0 | 36.0 | 38.0 | 50.0 | 39.0 | 42.6 | 80.0 |
Shannon Monthly Records
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mn. Max (°C) |
27.9 | 28.5 | 26.9 | 24.6 | 19.9 | 16.9 | 16.0 | 17.5 | 18.1 | 22.1 | 24.5 | 29.4 | 21.1 |
| Low Mn. Max (°C) |
24.1 | 24.2 | 22.1 | 18.6 | 16.4 | 14.6 | 13.7 | 14.0 | 14.3 | 16.4 | 18.7 | 20.9 | 19.3 |
| High Mn. Min (°C) |
15.4 | 15.4 | 14.7 | 12.1 | 11.6 | 9.1 | 7.8 | 8.3 | 8.3 | 10.3 | 12.2 | 13.2 | 10.4 |
| Low Mn. Min (°C) |
11.4 | 11.9 | 10.9 | 8.6 | 7.4 | 5.0 | 5.1 | 5.3 | 5.7 | 6.8 | 8.4 | 9.5 | 9.1 |
| High Rain (mm) |
70.0 | 105.8 | 100.8 | 183.0 | 208.6 | 269.0 | 302.0 | 223.2 | 203.4 | 132.6 | 151.4 | 83.2 | 1357.4 |
| Low Rain (mm) |
3.2 | 2.8 | 1.0 | 7.6 | 56.4 | 40.6 | 68.6 | 31.4 | 2.4 | 34.0 | 12.4 | 5.0 | 520.6 |
Shannon Annual Temperatures & Rainfall
SHANNON
Mean daily minimum temp
Mean daily maximum temp
Highest/lowest on record
Highest/lowest on record
Mean monthly rainfall
Shannon Average Number of Days With Temperatures
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 40.0°C |
0.1 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.4 |
| ≥ 35.0°C |
1.8 | 1.6 | 1.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 1.2 | 6.1 |
| ≥ 30.0°C |
7.6 | 7.6 | 4.6 | 0.8 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 2.4 | 5.2 | 28.6 |
| ≤ 2.0°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 1.0 | 1.9 | 1.0 | 1.0 | 0.2 | 0.1 | 0.0 | 5.7 |
| ≤ 0.0°C |
0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.7 |
Shannon 'per Week' Values (14th/86th Percentiles)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max |
32.0 | 33.0 | 30.9 | 26.0 | 21.3 | 18.0 | 17.0 | 18.0 | 19.0 | 22.0 | 27.0 | 30.6 | 27.0 |
| Low Max |
21.0 | 21.4 | 19.0 | 17.0 | 15.0 | 13.0 | 13.0 | 13.0 | 13.2 | 15.0 | 17.4 | 19.0 | 15.0 |
| High Min |
16.0 | 17.0 | 16.0 | 14.0 | 13.0 | 10.5 | 9.0 | 10.0 | 10.0 | 11.0 | 13.0 | 15.0 | 14.0 |
| Low Min |
9.0 | 9.3 | 9.0 | 7.0 | 6.0 | 4.0 | 3.0 | 4.0 | 4.0 | 5.0 | 6.0 | 8.0 | 5.0 |
Shannon Data Availability
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Ann | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Years of Minima |
20 | 22 | 23 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 21.0 |
| Earliest Entry |
1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1996 | 1996 |
| Latest Entry |
2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2020 | 2020 | 2020 | 2021 |
| Years of Maxima |
20 | 22 | 22 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 21.0 |
| Earliest Entry |
1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1996 | 1996 |
| Latest Entry |
2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2020 | 2020 | 2020 | 2021 |
| Years of Rainfall |
20 | 22 | 23 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 21.0 |
| Earliest Entry |
1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1997 | 1996 | 1996 |
| Latest Entry |
2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2021 | 2020 | 2020 | 2020 | 2021 |
Station Details
SHANNON
Southwest, Western Australia
Southwest, Western Australia
34.5683°S 116.3367°E
210m AMSL
Commenced 1996
Commenced 1996
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Weather News
Contrails: Why do they form?
12:00 EDT
With travel restrictions beginning to gradually ease and international borders beginning to slowly open, airplanes, and the contrails they form are likely to become more frequent over the next few months.
Wet end to wild week of weather in Australia's southeast
11:46 EDT
There has been plenty of rain to go around in the southeast of Australia for the past week, and the rainfall totals for the past two days may have just summed up the week nicely.
