Merthyr Tydfil December Weather Averages Merthyr Tydfil, United Kingdom

December Weather Averages for Merthyr Tydfil

High Temp	7°C	44°F
Low Temp	3°C	37°F
Avg Temp	5°C	41°F
Sunshine Hours	80 hours
Rainfall	143.75 mm	5.66 In
Rain days	12 days
Pressure	1013 mb	30 In

Merthyr Tydfil December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	5°C / 41°F	1°C / 33°F	3°C / 37°F	98 hours	109.37 mm / 4.31 In	12 days	1006 mb / 30 In
2010	1°C / 33°F	-4°C / 24°F	-2°C / 29°F	137 hours	27.60 mm / 1.09 In	9 days	1015 mb / 30 In
2011	8°C / 46°F	3°C / 38°F	5°C / 42°F	63 hours	123.24 mm / 4.85 In	12 days	1012 mb / 30 In
2012	6°C / 44°F	2°C / 36°F	4°C / 40°F	91 hours	192.47 mm / 7.58 In	13 days	1007 mb / 30 In
2013	8°C / 46°F	3°C / 37°F	5°C / 42°F	97 hours	168.07 mm / 6.62 In	16 days	1012 mb / 30 In
2014	8°C / 46°F	2°C / 36°F	5°C / 41°F	131 hours	77.02 mm / 3.03 In	4 days	1019 mb / 31 In
2015	11°C / 51°F	7°C / 44°F	9°C / 48°F	25 hours	236.17 mm / 9.30 In	19 days	1016 mb / 30 In
2016	8°C / 46°F	4°C / 39°F	6°C / 43°F	107 hours	31.07 mm / 1.22 In	6 days	1026 mb / 31 In
2017	7°C / 44°F	2°C / 36°F	5°C / 40°F	100 hours	129.72 mm / 5.11 In	8 days	1014 mb / 30 In
2018	9°C / 48°F	5°C / 41°F	7°C / 45°F	46 hours	141.67 mm / 5.58 In	14 days	1015 mb / 30 In
2019	7°C / 45°F	3°C / 37°F	5°C / 41°F	105 hours	124.48 mm / 4.90 In	11 days	1008 mb / 30 In
2020	6°C / 42°F	1°C / 34°F	4°C / 39°F	35 hours	232.93 mm / 9.17 In	15 days	1002 mb / 30 In
2021	7°C / 45°F	3°C / 38°F	5°C / 42°F	77 hours	129.90 mm / 5.11 In	14 days	1013 mb / 30 In
2022	5°C / 41°F	1°C / 34°F	3°C / 37°F	101 hours	138.46 mm / 5.45 In	13 days	1012 mb / 30 In
2023	8°C / 46°F	4°C / 39°F	6°C / 43°F	46 hours	204.57 mm / 8.05 In	11 days	1011 mb / 30 In
2024	8°C / 46°F	4°C / 39°F	6°C / 43°F	37 hours	94.28 mm / 3.71 In	9 days	1023 mb / 31 In
2025	7°C / 45°F	3°C / 38°F	5°C / 41°F	56 hours	282.80 mm / 11.13 In	11 days	1014 mb / 30 In

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