Boston September Weather Averages Massachusetts, United States of America

September Weather Averages for Boston

High Temp	23°C	73°F
Low Temp	15°C	59°F
Avg Temp	19°C	66°F
Sunshine Hours	206 hours
Rainfall	99.39 mm	3.91 In
Rain days	6 days
Pressure	1018 mb	31 In

Boston September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	21°C / 70°F	15°C / 59°F	18°C / 64°F	228 hours	249.29 mm / 9.81 In	8 days	1019 mb / 31 In
2009	21°C / 69°F	13°C / 56°F	17°C / 62°F	260 hours	51.80 mm / 2.04 In	4 days	1018 mb / 31 In
2010	23°C / 73°F	15°C / 59°F	19°C / 66°F	207 hours	60.81 mm / 2.39 In	7 days	1014 mb / 30 In
2011	23°C / 74°F	15°C / 59°F	19°C / 65°F	206 hours	129.16 mm / 5.09 In	10 days	1017 mb / 31 In
2012	22°C / 72°F	13°C / 56°F	18°C / 64°F	215 hours	97.58 mm / 3.84 In	11 days	1016 mb / 30 In
2013	22°C / 72°F	12°C / 54°F	17°C / 63°F	232 hours	76.72 mm / 3.02 In	6 days	1015 mb / 30 In
2014	23°C / 74°F	14°C / 56°F	18°C / 64°F	252 hours	18.90 mm / 0.74 In	3 days	1019 mb / 31 In
2015	24°C / 76°F	15°C / 60°F	20°C / 67°F	194 hours	91.40 mm / 3.60 In	4 days	1018 mb / 31 In
2016	24°C / 75°F	15°C / 60°F	19°C / 67°F	195 hours	68.07 mm / 2.68 In	5 days	1019 mb / 31 In
2017	24°C / 75°F	17°C / 62°F	20°C / 68°F	217 hours	83.02 mm / 3.27 In	6 days	1016 mb / 30 In
2018	24°C / 75°F	17°C / 63°F	20°C / 68°F	143 hours	147.66 mm / 5.81 In	7 days	1022 mb / 31 In
2019	24°C / 74°F	15°C / 59°F	19°C / 66°F	238 hours	50.82 mm / 2.00 In	6 days	1019 mb / 31 In
2020	23°C / 74°F	16°C / 61°F	19°C / 67°F	231 hours	41.60 mm / 1.64 In	6 days	1019 mb / 31 In
2021	24°C / 75°F	16°C / 60°F	19°C / 67°F	161 hours	161.87 mm / 6.37 In	9 days	1016 mb / 30 In
2022	22°C / 72°F	14°C / 58°F	18°C / 65°F	184 hours	135.20 mm / 5.32 In	5 days	1016 mb / 30 In
2023	23°C / 74°F	15°C / 60°F	19°C / 66°F	188 hours	155.25 mm / 6.11 In	8 days	1018 mb / 31 In
2024	21°C / 70°F	15°C / 58°F	18°C / 64°F	168 hours	220.38 mm / 8.68 In	5 days	1020 mb / 31 In

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