South Yarmouth September Weather Averages Massachusetts, United States of America

September Weather Averages for South Yarmouth

High Temp	20°C	68°F
Low Temp	17°C	63°F
Avg Temp	19°C	66°F
Sunshine Hours	225 hours
Rainfall	101.12 mm	3.98 In
Rain days	6 days
Pressure	1017 mb	31 In

South Yarmouth 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	255 hours	60.98 mm / 2.40 In	4 days	1018 mb / 31 In
2010	20°C / 68°F	18°C / 64°F	19°C / 66°F	249 hours	76.86 mm / 3.03 In	5 days	1014 mb / 30 In
2011	19°C / 67°F	18°C / 64°F	19°C / 65°F	228 hours	91.87 mm / 3.62 In	7 days	1017 mb / 31 In
2012	20°C / 68°F	18°C / 64°F	19°C / 66°F	236 hours	136.23 mm / 5.36 In	10 days	1016 mb / 30 In
2013	19°C / 65°F	16°C / 61°F	18°C / 64°F	264 hours	28.52 mm / 1.12 In	5 days	1015 mb / 30 In
2014	20°C / 67°F	17°C / 63°F	19°C / 65°F	286 hours	37.26 mm / 1.47 In	3 days	1019 mb / 31 In
2015	21°C / 69°F	19°C / 65°F	20°C / 67°F	215 hours	87.39 mm / 3.44 In	4 days	1018 mb / 31 In
2016	20°C / 69°F	18°C / 65°F	19°C / 67°F	216 hours	103.90 mm / 4.09 In	6 days	1019 mb / 31 In
2017	19°C / 67°F	17°C / 63°F	18°C / 65°F	199 hours	120.50 mm / 4.74 In	9 days	1016 mb / 30 In
2018	20°C / 69°F	18°C / 64°F	19°C / 66°F	188 hours	145.50 mm / 5.73 In	10 days	1022 mb / 31 In
2019	20°C / 67°F	17°C / 63°F	18°C / 65°F	260 hours	90.43 mm / 3.56 In	5 days	1019 mb / 31 In
2020	21°C / 69°F	17°C / 62°F	19°C / 66°F	207 hours	47.52 mm / 1.87 In	6 days	1019 mb / 31 In
2021	22°C / 71°F	18°C / 65°F	20°C / 68°F	173 hours	167.93 mm / 6.61 In	11 days	1016 mb / 30 In
2022	21°C / 70°F	17°C / 63°F	19°C / 66°F	225 hours	65.70 mm / 2.59 In	4 days	1016 mb / 30 In
2023	22°C / 71°F	17°C / 63°F	19°C / 67°F	177 hours	256.25 mm / 10.09 In	6 days	1018 mb / 31 In

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