Princeton September Weather Averages New Jersey, United States of America

September Weather Averages for Princeton

High Temp	25°C	77°F
Low Temp	16°C	61°F
Avg Temp	20°C	68°F
Sunshine Hours	202 hours
Rainfall	98.78 mm	3.89 In
Rain days	6 days
Pressure	1018 mb	31 In

Princeton September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	25°C / 77°F	16°C / 61°F	20°C / 68°F	244 hours	147.81 mm / 5.82 In	6 days	1019 mb / 31 In
2009	22°C / 72°F	14°C / 58°F	18°C / 64°F	186 hours	102.79 mm / 4.05 In	5 days	1018 mb / 31 In
2010	26°C / 79°F	16°C / 61°F	21°C / 69°F	234 hours	106.25 mm / 4.18 In	6 days	1014 mb / 30 In
2011	24°C / 75°F	16°C / 61°F	20°C / 68°F	130 hours	144.64 mm / 5.69 In	12 days	1016 mb / 30 In
2012	24°C / 75°F	15°C / 59°F	19°C / 67°F	213 hours	110.14 mm / 4.34 In	9 days	1016 mb / 30 In
2013	24°C / 75°F	13°C / 56°F	18°C / 65°F	297 hours	52.50 mm / 2.07 In	3 days	1016 mb / 30 In
2014	25°C / 77°F	15°C / 59°F	19°C / 67°F	223 hours	40.83 mm / 1.61 In	6 days	1019 mb / 31 In
2015	26°C / 79°F	17°C / 62°F	21°C / 70°F	163 hours	98.61 mm / 3.88 In	6 days	1018 mb / 31 In
2016	26°C / 79°F	17°C / 62°F	21°C / 70°F	237 hours	86.30 mm / 3.40 In	8 days	1019 mb / 31 In
2017	26°C / 79°F	17°C / 63°F	21°C / 70°F	222 hours	42.10 mm / 1.66 In	4 days	1017 mb / 30 In
2018	26°C / 78°F	19°C / 66°F	22°C / 72°F	93 hours	189.54 mm / 7.46 In	14 days	1021 mb / 31 In
2019	27°C / 80°F	18°C / 64°F	22°C / 71°F	254 hours	23.60 mm / 0.93 In	2 days	1019 mb / 31 In
2020	25°C / 76°F	17°C / 62°F	20°C / 69°F	207 hours	99.35 mm / 3.91 In	4 days	1019 mb / 31 In
2021	25°C / 77°F	16°C / 61°F	20°C / 68°F	199 hours	87.47 mm / 3.44 In	7 days	1016 mb / 30 In
2022	25°C / 78°F	15°C / 59°F	20°C / 68°F	240 hours	86.60 mm / 3.41 In	4 days	1017 mb / 31 In
2023	25°C / 77°F	15°C / 60°F	20°C / 67°F	179 hours	229.51 mm / 9.04 In	8 days	1018 mb / 31 In
2024	23°C / 74°F	16°C / 60°F	19°C / 66°F	154 hours	80.19 mm / 3.16 In	3 days	1019 mb / 31 In

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