Hyannis Port September Weather Averages Massachusetts, United States of America

September Weather Averages for Hyannis Port

High Temp	20°C	69°F
Low Temp	17°C	63°F
Avg Temp	19°C	66°F
Sunshine Hours	226 hours
Rainfall	105.67 mm	4.16 In
Rain days	6 days
Pressure	1017 mb	31 In

Hyannis Port September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	19°C / 66°F	16°C / 61°F	18°C / 64°F	258 hours	73.17 mm / 2.88 In	4 days	1018 mb / 31 In
2010	20°C / 68°F	18°C / 64°F	19°C / 66°F	254 hours	93.18 mm / 3.67 In	5 days	1014 mb / 30 In
2011	19°C / 67°F	18°C / 64°F	19°C / 65°F	230 hours	95.38 mm / 3.76 In	7 days	1017 mb / 31 In
2012	20°C / 69°F	18°C / 64°F	19°C / 66°F	237 hours	142.38 mm / 5.61 In	10 days	1016 mb / 30 In
2013	19°C / 66°F	16°C / 61°F	18°C / 64°F	263 hours	32.63 mm / 1.28 In	5 days	1015 mb / 30 In
2014	20°C / 68°F	17°C / 63°F	19°C / 65°F	286 hours	39.16 mm / 1.54 In	3 days	1019 mb / 31 In
2015	21°C / 70°F	18°C / 65°F	20°C / 68°F	225 hours	93.57 mm / 3.68 In	4 days	1018 mb / 31 In
2016	20°C / 69°F	18°C / 65°F	20°C / 67°F	210 hours	105.14 mm / 4.14 In	7 days	1019 mb / 31 In
2017	20°C / 67°F	18°C / 64°F	19°C / 65°F	207 hours	120.50 mm / 4.74 In	9 days	1016 mb / 30 In
2018	21°C / 69°F	18°C / 65°F	19°C / 67°F	188 hours	146.57 mm / 5.77 In	10 days	1022 mb / 31 In
2019	20°C / 67°F	17°C / 63°F	18°C / 65°F	256 hours	97.71 mm / 3.85 In	5 days	1019 mb / 31 In
2020	21°C / 69°F	17°C / 62°F	19°C / 66°F	201 hours	47.97 mm / 1.89 In	6 days	1019 mb / 31 In
2021	22°C / 72°F	18°C / 64°F	20°C / 68°F	169 hours	168.23 mm / 6.62 In	11 days	1016 mb / 30 In
2022	22°C / 71°F	17°C / 62°F	19°C / 66°F	220 hours	65.70 mm / 2.59 In	4 days	1016 mb / 30 In
2023	22°C / 72°F	17°C / 63°F	19°C / 67°F	179 hours	263.78 mm / 10.39 In	6 days	1018 mb / 31 In

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