Sumner September Weather Averages Washington, United States of America

September Weather Averages for Sumner

High Temp	21°C	70°F
Low Temp	10°C	50°F
Avg Temp	15°C	59°F
Sunshine Hours	209 hours
Rainfall	78.81 mm	3.10 In
Rain days	7 days
Pressure	1016 mb	30 In

Sumner September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	22°C / 71°F	9°C / 48°F	15°C / 58°F	297 hours	29.00 mm / 1.14 In	2 days	1018 mb / 31 In
2009	21°C / 70°F	10°C / 50°F	15°C / 59°F	258 hours	62.20 mm / 2.45 In	7 days	1017 mb / 31 In
2010	19°C / 66°F	9°C / 49°F	14°C / 57°F	142 hours	122.46 mm / 4.82 In	10 days	1015 mb / 30 In
2011	23°C / 73°F	10°C / 49°F	16°C / 60°F	265 hours	55.36 mm / 2.18 In	4 days	1017 mb / 31 In
2012	23°C / 73°F	8°C / 47°F	15°C / 58°F	301 hours	4.40 mm / 0.17 In	1 days	1019 mb / 31 In
2013	20°C / 67°F	10°C / 50°F	14°C / 58°F	183 hours	244.82 mm / 9.64 In	14 days	1012 mb / 30 In
2014	22°C / 71°F	10°C / 50°F	15°C / 60°F	227 hours	49.20 mm / 1.94 In	4 days	1015 mb / 30 In
2015	19°C / 66°F	9°C / 47°F	13°C / 56°F	194 hours	39.10 mm / 1.54 In	8 days	1016 mb / 30 In
2016	19°C / 66°F	8°C / 47°F	13°C / 56°F	226 hours	70.05 mm / 2.76 In	6 days	1018 mb / 31 In
2017	22°C / 72°F	12°C / 53°F	16°C / 61°F	232 hours	67.80 mm / 2.67 In	7 days	1015 mb / 30 In
2018	20°C / 68°F	10°C / 50°F	14°C / 58°F	211 hours	78.80 mm / 3.10 In	9 days	1016 mb / 30 In
2019	19°C / 66°F	11°C / 51°F	14°C / 58°F	150 hours	127.23 mm / 5.01 In	11 days	1015 mb / 30 In
2020	24°C / 75°F	13°C / 55°F	18°C / 65°F	210 hours	124.43 mm / 4.90 In	7 days	1016 mb / 30 In
2021	21°C / 69°F	10°C / 50°F	15°C / 59°F	170 hours	108.86 mm / 4.29 In	10 days	1016 mb / 30 In
2022	24°C / 76°F	11°C / 52°F	17°C / 63°F	255 hours	5.60 mm / 0.22 In	0 days	1015 mb / 30 In
2023	21°C / 71°F	10°C / 50°F	15°C / 59°F	183 hours	49.37 mm / 1.94 In	5 days	1016 mb / 30 In
2024	21°C / 69°F	12°C / 53°F	16°C / 61°F	143 hours	51.32 mm / 2.02 In	2 days	1016 mb / 30 In

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