Stonington September Weather Averages Connecticut, United States of America

September Weather Averages for Stonington

High Temp	22°C	72°F
Low Temp	16°C	60°F
Avg Temp	19°C	66°F
Sunshine Hours	214 hours
Rainfall	101.19 mm	3.98 In
Rain days	6 days
Pressure	1018 mb	31 In

Stonington September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	22°C / 72°F	16°C / 61°F	19°C / 66°F	235 hours	280.57 mm / 11.05 In	8 days	1019 mb / 31 In
2009	21°C / 69°F	15°C / 59°F	18°C / 64°F	244 hours	51.84 mm / 2.04 In	2 days	1018 mb / 31 In
2010	23°C / 73°F	16°C / 61°F	19°C / 67°F	257 hours	98.66 mm / 3.88 In	5 days	1014 mb / 30 In
2011	22°C / 71°F	16°C / 61°F	19°C / 66°F	218 hours	110.13 mm / 4.34 In	8 days	1017 mb / 30 In
2012	21°C / 70°F	15°C / 59°F	18°C / 65°F	234 hours	119.94 mm / 4.72 In	10 days	1016 mb / 30 In
2013	21°C / 69°F	14°C / 57°F	17°C / 63°F	259 hours	69.44 mm / 2.73 In	5 days	1016 mb / 30 In
2014	22°C / 72°F	15°C / 59°F	19°C / 65°F	260 hours	35.26 mm / 1.39 In	5 days	1019 mb / 31 In
2015	24°C / 75°F	17°C / 62°F	20°C / 68°F	177 hours	96.06 mm / 3.78 In	4 days	1018 mb / 31 In
2016	23°C / 73°F	17°C / 62°F	20°C / 67°F	192 hours	105.60 mm / 4.16 In	8 days	1019 mb / 31 In
2017	23°C / 73°F	16°C / 61°F	19°C / 67°F	251 hours	70.34 mm / 2.77 In	5 days	1016 mb / 30 In
2018	22°C / 72°F	17°C / 63°F	20°C / 68°F	148 hours	152.94 mm / 6.02 In	10 days	1022 mb / 31 In
2019	22°C / 72°F	15°C / 59°F	18°C / 65°F	256 hours	45.96 mm / 1.81 In	5 days	1019 mb / 31 In
2020	22°C / 71°F	15°C / 60°F	19°C / 65°F	205 hours	86.64 mm / 3.41 In	7 days	1019 mb / 31 In
2021	23°C / 73°F	17°C / 62°F	20°C / 67°F	179 hours	169.36 mm / 6.67 In	9 days	1016 mb / 30 In
2022	23°C / 73°F	15°C / 59°F	19°C / 66°F	200 hours	92.00 mm / 3.62 In	6 days	1016 mb / 30 In
2023	23°C / 73°F	16°C / 61°F	19°C / 66°F	167 hours	181.95 mm / 7.16 In	4 days	1018 mb / 31 In
2024	20°C / 69°F	15°C / 59°F	18°C / 64°F	170 hours	133.01 mm / 5.24 In	3 days	1020 mb / 31 In

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