Decatur May Weather Averages Illinois, United States of America

May Weather Averages for Decatur

High Temp	23°C	73°F
Low Temp	13°C	56°F
Avg Temp	18°C	64°F
Sunshine Hours	182 hours
Rainfall	127.81 mm	5.03 In
Rain days	10 days
Pressure	1015 mb	30 In

Decatur May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	22°C / 72°F	12°C / 54°F	17°C / 63°F	229 hours	120.87 mm / 4.76 In	9 days	1015 mb / 30 In
2010	22°C / 72°F	13°C / 56°F	18°C / 64°F	219 hours	156.41 mm / 6.16 In	11 days	1014 mb / 30 In
2011	22°C / 71°F	12°C / 54°F	17°C / 62°F	185 hours	129.18 mm / 5.09 In	11 days	1012 mb / 30 In
2012	25°C / 78°F	15°C / 59°F	20°C / 68°F	305 hours	58.65 mm / 2.31 In	4 days	1014 mb / 30 In
2013	22°C / 72°F	13°C / 56°F	18°C / 64°F	156 hours	183.02 mm / 7.21 In	13 days	1014 mb / 30 In
2014	23°C / 73°F	13°C / 56°F	18°C / 64°F	148 hours	126.23 mm / 4.97 In	12 days	1015 mb / 30 In
2015	23°C / 74°F	14°C / 57°F	19°C / 66°F	191 hours	132.86 mm / 5.23 In	12 days	1018 mb / 31 In
2016	21°C / 70°F	12°C / 54°F	17°C / 62°F	153 hours	108.82 mm / 4.28 In	10 days	1015 mb / 30 In
2017	21°C / 70°F	12°C / 54°F	16°C / 61°F	198 hours	136.73 mm / 5.38 In	8 days	1012 mb / 30 In
2018	27°C / 81°F	17°C / 63°F	22°C / 72°F	200 hours	109.33 mm / 4.30 In	11 days	1014 mb / 30 In
2019	23°C / 73°F	14°C / 56°F	18°C / 65°F	198 hours	145.18 mm / 5.72 In	11 days	1013 mb / 30 In
2020	20°C / 67°F	11°C / 52°F	16°C / 60°F	99 hours	152.30 mm / 6.00 In	11 days	1016 mb / 30 In
2021	20°C / 68°F	12°C / 53°F	16°C / 60°F	123 hours	148.72 mm / 5.86 In	10 days	1019 mb / 31 In
2022	24°C / 74°F	14°C / 57°F	19°C / 66°F	177 hours	127.20 mm / 5.01 In	9 days	1013 mb / 30 In
2023	23°C / 74°F	12°C / 54°F	18°C / 64°F	187 hours	77.90 mm / 3.07 In	8 days	1017 mb / 31 In
2024	23°C / 74°F	14°C / 58°F	19°C / 65°F	151 hours	131.61 mm / 5.18 In	8 days	1011 mb / 30 In

Illinois

Hotels Near Decatur

Cities Near Decatur

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