Monmouth September Weather Averages Illinois, United States of America

September Weather Averages for Monmouth

High Temp	25°C	78°F
Low Temp	14°C	58°F
Avg Temp	19°C	67°F
Sunshine Hours	246 hours
Rainfall	95.25 mm	3.75 In
Rain days	5 days
Pressure	1016 mb	30 In

Monmouth September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	23°C / 74°F	14°C / 57°F	18°C / 65°F	196 hours	242.56 mm / 9.55 In	11 days	1018 mb / 31 In
2009	24°C / 74°F	13°C / 55°F	18°C / 64°F	233 hours	49.20 mm / 1.94 In	4 days	1018 mb / 31 In
2010	24°C / 75°F	13°C / 56°F	18°C / 65°F	225 hours	167.86 mm / 6.61 In	7 days	1015 mb / 30 In
2011	21°C / 69°F	12°C / 53°F	16°C / 61°F	204 hours	77.56 mm / 3.05 In	5 days	1016 mb / 30 In
2012	23°C / 74°F	12°C / 53°F	17°C / 63°F	271 hours	133.70 mm / 5.26 In	5 days	1016 mb / 30 In
2013	27°C / 80°F	14°C / 58°F	20°C / 68°F	274 hours	43.90 mm / 1.73 In	5 days	1015 mb / 30 In
2014	24°C / 74°F	12°C / 54°F	18°C / 64°F	260 hours	115.89 mm / 4.56 In	6 days	1018 mb / 31 In
2015	27°C / 80°F	16°C / 61°F	21°C / 70°F	228 hours	66.80 mm / 2.63 In	3 days	1017 mb / 31 In
2016	26°C / 79°F	16°C / 61°F	21°C / 69°F	229 hours	90.29 mm / 3.55 In	6 days	1017 mb / 31 In
2017	28°C / 82°F	15°C / 58°F	21°C / 69°F	327 hours	28.76 mm / 1.13 In	1 days	1017 mb / 31 In
2018	25°C / 77°F	15°C / 59°F	20°C / 68°F	210 hours	131.81 mm / 5.19 In	8 days	1018 mb / 31 In
2019	26°C / 78°F	17°C / 62°F	21°C / 70°F	227 hours	234.15 mm / 9.22 In	10 days	1016 mb / 30 In
2020	23°C / 73°F	13°C / 56°F	18°C / 64°F	219 hours	113.04 mm / 4.45 In	10 days	1017 mb / 31 In
2021	28°C / 82°F	16°C / 61°F	21°C / 71°F	278 hours	30.70 mm / 1.21 In	2 days	1014 mb / 30 In
2022	27°C / 80°F	14°C / 58°F	20°C / 69°F	268 hours	60.60 mm / 2.39 In	5 days	1016 mb / 30 In
2023	30°C / 86°F	14°C / 56°F	21°C / 70°F	240 hours	101.77 mm / 4.01 In	3 days	1016 mb / 30 In
2024	27°C / 80°F	14°C / 57°F	20°C / 68°F	242 hours	77.94 mm / 3.07 In	2 days	1017 mb / 30 In

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