Portsmouth September Weather Averages Rhode Island, United States of America

September Weather Averages for Portsmouth

High Temp	22°C	72°F
Low Temp	16°C	60°F
Avg Temp	19°C	66°F
Sunshine Hours	213 hours
Rainfall	100.36 mm	3.95 In
Rain days	6 days
Pressure	1018 mb	31 In

Portsmouth September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	21°C / 70°F	17°C / 62°F	19°C / 66°F	228 hours	234.82 mm / 9.24 In	8 days	1019 mb / 31 In
2009	20°C / 68°F	15°C / 59°F	18°C / 64°F	235 hours	58.23 mm / 2.29 In	3 days	1018 mb / 31 In
2010	22°C / 72°F	16°C / 62°F	19°C / 67°F	257 hours	79.05 mm / 3.11 In	5 days	1014 mb / 30 In
2011	22°C / 71°F	16°C / 61°F	19°C / 66°F	228 hours	103.77 mm / 4.09 In	8 days	1017 mb / 31 In
2012	21°C / 71°F	15°C / 60°F	19°C / 65°F	224 hours	139.03 mm / 5.47 In	10 days	1016 mb / 30 In
2013	21°C / 69°F	14°C / 57°F	17°C / 63°F	248 hours	49.63 mm / 1.95 In	5 days	1015 mb / 30 In
2014	22°C / 71°F	15°C / 60°F	18°C / 65°F	277 hours	31.59 mm / 1.24 In	5 days	1019 mb / 31 In
2015	23°C / 74°F	17°C / 62°F	20°C / 68°F	197 hours	92.23 mm / 3.63 In	4 days	1018 mb / 31 In
2016	23°C / 73°F	17°C / 62°F	19°C / 67°F	191 hours	98.60 mm / 3.88 In	8 days	1019 mb / 31 In
2017	23°C / 73°F	16°C / 61°F	19°C / 67°F	222 hours	90.89 mm / 3.58 In	5 days	1016 mb / 30 In
2018	23°C / 73°F	17°C / 62°F	20°C / 67°F	155 hours	134.14 mm / 5.28 In	8 days	1022 mb / 31 In
2019	22°C / 71°F	15°C / 59°F	18°C / 65°F	249 hours	55.50 mm / 2.19 In	5 days	1019 mb / 31 In
2020	22°C / 71°F	16°C / 60°F	19°C / 66°F	207 hours	75.45 mm / 2.97 In	5 days	1019 mb / 31 In
2021	23°C / 73°F	17°C / 62°F	20°C / 67°F	166 hours	192.35 mm / 7.57 In	9 days	1016 mb / 30 In
2022	23°C / 73°F	15°C / 59°F	19°C / 66°F	216 hours	90.50 mm / 3.56 In	7 days	1016 mb / 30 In
2023	23°C / 73°F	16°C / 60°F	19°C / 66°F	172 hours	196.45 mm / 7.73 In	5 days	1018 mb / 31 In
2024	20°C / 69°F	15°C / 59°F	18°C / 64°F	167 hours	118.37 mm / 4.66 In	2 days	1020 mb / 31 In

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