Cassilis Rotherw Airport Rainfall Forecast

Today 12 Dec
70%1–10mm
Sat 13 Dec
70%1–10mm
Sun 14 Dec
45%1–5mm
Mon 15 Dec
20%< 1mm
Tue 16 Dec
15%< 1mm
Wed 17 Dec
10%< 1mm
Thu 18 Dec
5%< 1mm

Cassilis Rotherw Airport Rainfall Statistics View More

December Rainfall

Merriwa (Roscommon) (28km)

Total Rainfall 2025
537.4mm
Daily Average 2025
1.7mm
Wettest Day 27 May, 2025
37.8mm
Wet Days 2025
83/346 (24%)
Total Rainfall November
48.2mm
Daily Average November
1.6mm
Wettest Day 21 November, 2025
14mm
Wet Days November
12/30 (40%)
Total Rainfall December
1.8mm
Daily Average December
0.2mm
Wettest Day 2 December, 2025
1.8mm
Wet Days December
1/12 (8%)

Climate (2010–Present)

Merriwa (Roscommon) (28km)

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Annual Average 2020–2024
758.6mm
Monthly Average 2020–2025
59.4mm
Daily Average 2020–2025
2mm
Wettest Day 23 March, 2021
75.6mm

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