Casper September Weather Averages Wyoming, United States of America

September Weather Averages for Casper

High Temp	24°C	76°F
Low Temp	10°C	50°F
Avg Temp	17°C	63°F
Sunshine Hours	309 hours
Rainfall	20.18 mm	0.79 In
Rain days	2 days
Pressure	1014 mb	30 In

Casper September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	21°C / 70°F	7°C / 45°F	14°C / 57°F	281 hours	27.56 mm / 1.08 In	1 days	1017 mb / 31 In
2009	24°C / 76°F	9°C / 49°F	17°C / 62°F	339 hours	18.80 mm / 0.74 In	4 days	1016 mb / 30 In
2010	25°C / 77°F	8°C / 47°F	16°C / 61°F	349 hours	13.10 mm / 0.52 In	1 days	1013 mb / 30 In
2011	23°C / 74°F	10°C / 50°F	16°C / 62°F	329 hours	3.40 mm / 0.13 In	1 days	1017 mb / 31 In
2012	24°C / 75°F	10°C / 50°F	17°C / 63°F	342 hours	4.10 mm / 0.16 In	0 days	1016 mb / 30 In
2013	23°C / 74°F	11°C / 53°F	17°C / 63°F	301 hours	51.84 mm / 2.04 In	4 days	1012 mb / 30 In
2014	23°C / 73°F	9°C / 48°F	16°C / 61°F	308 hours	25.90 mm / 1.02 In	2 days	1014 mb / 30 In
2015	26°C / 78°F	12°C / 54°F	19°C / 66°F	305 hours	0.40 mm / 0.02 In	0 days	1013 mb / 30 In
2016	23°C / 73°F	10°C / 49°F	16°C / 61°F	301 hours	23.10 mm / 0.91 In	5 days	1015 mb / 30 In
2017	21°C / 71°F	9°C / 49°F	15°C / 60°F	270 hours	36.01 mm / 1.42 In	4 days	1014 mb / 30 In
2018	25°C / 77°F	10°C / 50°F	17°C / 63°F	335 hours	6.00 mm / 0.24 In	0 days	1013 mb / 30 In
2019	24°C / 76°F	10°C / 50°F	17°C / 63°F	302 hours	21.53 mm / 0.85 In	4 days	1012 mb / 30 In
2020	23°C / 74°F	8°C / 47°F	16°C / 61°F	293 hours	36.77 mm / 1.45 In	3 days	1017 mb / 30 In
2021	27°C / 80°F	11°C / 52°F	19°C / 66°F	275 hours	27.53 mm / 1.08 In	3 days	1013 mb / 30 In
2022	27°C / 80°F	10°C / 51°F	19°C / 66°F	279 hours	18.20 mm / 0.72 In	3 days	1014 mb / 30 In
2023	26°C / 78°F	8°C / 47°F	17°C / 63°F	304 hours	9.98 mm / 0.39 In	0 days	1013 mb / 30 In
2024	27°C / 80°F	10°C / 50°F	18°C / 65°F	319 hours	26.29 mm / 1.04 In	2 days	1013 mb / 30 In

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