Harpenden May Weather Averages Hertfordshire, United Kingdom

May Weather Averages for Harpenden

High Temp	16°C	60°F
Low Temp	7°C	45°F
Avg Temp	12°C	53°F
Sunshine Hours	109 hours
Rainfall	59.74 mm	2.35 In
Rain days	8 days
Pressure	1017 mb	30 In

Harpenden May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	18°C / 64°F	9°C / 48°F	13°C / 56°F	166 hours	86.99 mm / 3.42 In	9 days	1015 mb / 30 In
2009	17°C / 62°F	8°C / 46°F	12°C / 54°F	129 hours	42.00 mm / 1.65 In	9 days	1018 mb / 31 In
2010	15°C / 58°F	5°C / 42°F	10°C / 51°F	105 hours	44.96 mm / 1.77 In	3 days	1017 mb / 31 In
2011	16°C / 61°F	7°C / 45°F	12°C / 53°F	145 hours	23.98 mm / 0.94 In	3 days	1018 mb / 31 In
2012	15°C / 59°F	8°C / 46°F	11°C / 52°F	92 hours	77.51 mm / 3.05 In	10 days	1017 mb / 30 In
2013	14°C / 57°F	6°C / 42°F	10°C / 50°F	107 hours	63.22 mm / 2.49 In	8 days	1012 mb / 30 In
2014	16°C / 60°F	8°C / 46°F	12°C / 53°F	119 hours	88.41 mm / 3.48 In	12 days	1015 mb / 30 In
2015	14°C / 58°F	7°C / 44°F	11°C / 51°F	74 hours	67.61 mm / 2.66 In	11 days	1014 mb / 30 In
2016	16°C / 60°F	8°C / 46°F	12°C / 53°F	117 hours	47.50 mm / 1.87 In	7 days	1015 mb / 30 In
2017	16°C / 61°F	9°C / 48°F	13°C / 55°F	103 hours	94.37 mm / 3.72 In	7 days	1017 mb / 30 In
2018	18°C / 65°F	9°C / 48°F	14°C / 57°F	196 hours	64.29 mm / 2.53 In	10 days	1018 mb / 31 In
2019	15°C / 60°F	7°C / 45°F	11°C / 53°F	106 hours	50.20 mm / 1.98 In	10 days	1017 mb / 31 In
2020	17°C / 62°F	7°C / 45°F	12°C / 54°F	170 hours	5.60 mm / 0.22 In	1 days	1022 mb / 31 In
2021	13°C / 56°F	6°C / 42°F	9°C / 49°F	52 hours	103.53 mm / 4.08 In	15 days	1011 mb / 30 In
2022	17°C / 62°F	8°C / 47°F	12°C / 54°F	90 hours	53.20 mm / 2.09 In	8 days	1019 mb / 31 In
2023	16°C / 60°F	7°C / 45°F	11°C / 53°F	92 hours	53.80 mm / 2.12 In	6 days	1023 mb / 31 In
2024	16°C / 61°F	9°C / 48°F	12°C / 54°F	50 hours	75.65 mm / 2.98 In	4 days	1013 mb / 30 In

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