Reservoir Rainfall Forecast

Today 29 Sep
40%< 1mm
Tue 30 Sep
75%1–5mm
Wed 1 Oct
60%< 2mm
Thu 2 Oct
90%5–10mm
Fri 3 Oct
65%< 2mm
Sat 4 Oct
15%< 1mm

Reservoir Rainfall Statistics View More

September Rainfall

Preston Reservoir (8km)

Total Rainfall 2025
290.8mm
Daily Average 2025
1.2mm
Wettest Day 7 January, 2025
23.4mm
Wet Days 2025
91/272 (33%)
Total Rainfall August
38.6mm
Daily Average August
1.2mm
Wettest Day 30 August, 2025
13.4mm
Wet Days August
10/31 (32%)
Total Rainfall September
12.2mm
Daily Average September
0.5mm
Wettest Day 22 September, 2025
1.8mm
Wet Days September
14/29 (48%)

Climate (2010–Present)

Preston Reservoir (8km)

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Annual Average 2020–2024
626.9mm
Monthly Average 2020–2025
52.5mm
Daily Average 2020–2025
1.8mm
Wettest Day 30 January, 2021
55.2mm

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