Ontario September Weather Averages Oregon, United States of America

September Weather Averages for Ontario

High Temp	28°C	82°F
Low Temp	14°C	57°F
Avg Temp	21°C	69°F
Sunshine Hours	305 hours
Rainfall	12.45 mm	0.49 In
Rain days	2 days
Pressure	1014 mb	30 In

Ontario September Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	27°C / 80°F	12°C / 54°F	19°C / 66°F	325 hours	9.00 mm / 0.35 In	1 days	1016 mb / 30 In
2009	29°C / 85°F	15°C / 59°F	22°C / 71°F	341 hours	0.00 mm / 0.00 In	0 days	1016 mb / 30 In
2010	27°C / 81°F	13°C / 55°F	20°C / 67°F	325 hours	1.80 mm / 0.07 In	0 days	1014 mb / 30 In
2011	29°C / 84°F	16°C / 60°F	22°C / 72°F	350 hours	0.30 mm / 0.01 In	0 days	1016 mb / 30 In
2012	28°C / 83°F	15°C / 59°F	21°C / 70°F	330 hours	0.40 mm / 0.02 In	0 days	1017 mb / 31 In
2013	26°C / 79°F	15°C / 59°F	20°C / 68°F	266 hours	36.00 mm / 1.42 In	6 days	1012 mb / 30 In
2014	27°C / 81°F	15°C / 59°F	21°C / 69°F	313 hours	24.90 mm / 0.98 In	3 days	1013 mb / 30 In
2015	27°C / 81°F	14°C / 58°F	20°C / 69°F	307 hours	12.10 mm / 0.48 In	0 days	1013 mb / 30 In
2016	26°C / 78°F	13°C / 56°F	19°C / 66°F	289 hours	9.20 mm / 0.36 In	1 days	1016 mb / 30 In
2017	27°C / 80°F	15°C / 59°F	21°C / 69°F	297 hours	10.88 mm / 0.43 In	3 days	1014 mb / 30 In
2018	27°C / 80°F	14°C / 57°F	20°C / 68°F	315 hours	0.40 mm / 0.02 In	0 days	1014 mb / 30 In
2019	25°C / 78°F	13°C / 56°F	19°C / 66°F	280 hours	31.71 mm / 1.25 In	3 days	1014 mb / 30 In
2020	30°C / 86°F	15°C / 59°F	23°C / 73°F	323 hours	0.10 mm / 0.00 In	0 days	1016 mb / 30 In
2021	29°C / 84°F	13°C / 56°F	21°C / 70°F	308 hours	7.30 mm / 0.29 In	2 days	1013 mb / 30 In
2022	31°C / 87°F	16°C / 60°F	23°C / 73°F	289 hours	3.40 mm / 0.13 In	3 days	1011 mb / 30 In
2023	27°C / 81°F	9°C / 49°F	19°C / 66°F	261 hours	19.31 mm / 0.76 In	1 days	1012 mb / 30 In
2024	29°C / 84°F	13°C / 55°F	20°C / 68°F	290 hours	41.44 mm / 1.63 In	2 days	1011 mb / 30 In

Oregon

Hotels Near Ontario

Cities Near Ontario

Quick and Easy Signup for Weather API

WeatherAPI.com makes it super easy to integrate our realtime, daily, hourly and 15 min interval weather forecast data, historical weather, marine weather, bulk request, air quality data, autocomplete, time zone, astronomy and sports data into your new or existing project.

Get Started