Welwyn Garden City September Weather Averages Hertfordshire, United Kingdom

September Weather Averages for Welwyn Garden City

High Temp	19°C	66°F
Low Temp	11°C	52°F
Avg Temp	15°C	59°F
Sunshine Hours	134 hours
Rainfall	48.95 mm	1.93 In
Rain days	6 days
Pressure	1016 mb	30 In

Welwyn Garden City September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	17°C / 62°F	10°C / 50°F	13°C / 56°F	118 hours	58.21 mm / 2.29 In	10 days	1017 mb / 31 In
2009	19°C / 66°F	11°C / 52°F	15°C / 59°F	147 hours	18.20 mm / 0.72 In	3 days	1022 mb / 31 In
2010	17°C / 63°F	10°C / 50°F	13°C / 56°F	110 hours	43.28 mm / 1.70 In	8 days	1015 mb / 30 In
2011	19°C / 67°F	11°C / 53°F	15°C / 59°F	119 hours	27.70 mm / 1.09 In	3 days	1013 mb / 30 In
2012	18°C / 64°F	9°C / 49°F	13°C / 56°F	154 hours	40.70 mm / 1.60 In	5 days	1015 mb / 30 In
2013	18°C / 65°F	10°C / 50°F	14°C / 57°F	148 hours	52.90 mm / 2.08 In	7 days	1016 mb / 30 In
2014	20°C / 68°F	12°C / 53°F	16°C / 60°F	122 hours	13.40 mm / 0.53 In	3 days	1019 mb / 31 In
2015	17°C / 62°F	10°C / 50°F	13°C / 56°F	122 hours	62.00 mm / 2.44 In	8 days	1017 mb / 31 In
2016	20°C / 69°F	13°C / 56°F	17°C / 62°F	137 hours	48.80 mm / 1.92 In	4 days	1017 mb / 31 In
2017	18°C / 64°F	11°C / 52°F	14°C / 58°F	101 hours	56.50 mm / 2.22 In	12 days	1013 mb / 30 In
2018	19°C / 66°F	12°C / 53°F	15°C / 59°F	186 hours	24.40 mm / 0.96 In	3 days	1021 mb / 31 In
2019	19°C / 66°F	12°C / 53°F	15°C / 59°F	151 hours	85.20 mm / 3.35 In	10 days	1017 mb / 31 In
2020	19°C / 66°F	11°C / 52°F	15°C / 59°F	163 hours	27.80 mm / 1.09 In	6 days	1017 mb / 30 In
2021	21°C / 70°F	12°C / 54°F	16°C / 61°F	131 hours	50.40 mm / 1.98 In	8 days	1018 mb / 31 In
2022	19°C / 66°F	12°C / 53°F	15°C / 59°F	74 hours	79.69 mm / 3.14 In	8 days	1013 mb / 30 In
2023	22°C / 72°F	14°C / 57°F	18°C / 64°F	162 hours	37.28 mm / 1.47 In	3 days	1014 mb / 30 In
2024	18°C / 65°F	11°C / 52°F	14°C / 58°F	114 hours	115.02 mm / 4.53 In	4 days	1014 mb / 30 In

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