Summit Weather History Illinois, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Mon 28 Apr, 2025 Weather in Summit

Sunrise: 05:51 AM Sunset: 07:47 PM	Moonrise: 06:01 AM Moonset: 09:31 PM	Max: 26.4 °c	Min: 11.3 °c	Avg: 18.2 °c	Precip: 0.00 mm	Max Wind: 29.9 kph

	Mon 28 0:00 am	Mon 28 3:00 am	Mon 28 6:00 am	Mon 28 9:00 am	Mon 28 12:00 pm	Mon 28 3:00 pm	Mon 28 6:00 pm	Mon 28 9:00 pm
Icon
Temp	13.1°c	11.6°c	11.6°c	14.2°c	17.3°c	25.2°c	25.6°c	23.3°c
Wind	11.5 kmph	12.2 kmph	13.7 kmph	15.8 kmph	19.8 kmph	23.8 kmph	24.5 kmph	27.4 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	18%	8%	43%	93%	91%	0%	0%	69%
Humidity	74%	75%	77%	69%	63%	61%	62%	77%
Pressure	1022 mb	1021 mb	1021 mb	1020 mb	1017 mb	1013 mb	1011 mb	1010 mb

Summit Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-1°C / 30°F	-7°C / 20°F	-4°C / 25°F	110 hours	54.78 mm / 2.16 In	9 days	1019 mb / 31 In
February	1°C / 34°F	-6°C / 22°F	-2°C / 28°F	113 hours	60.93 mm / 2.40 In	7 days	1019 mb / 31 In
March	8°C / 46°F	0°C / 33°F	4°C / 39°F	145 hours	84.03 mm / 3.31 In	7 days	1018 mb / 31 In
April	13°C / 55°F	5°C / 41°F	9°C / 48°F	148 hours	130.70 mm / 5.15 In	9 days	1014 mb / 30 In
May	19°C / 67°F	11°C / 52°F	15°C / 59°F	188 hours	130.13 mm / 5.12 In	9 days	1015 mb / 30 In
June	25°C / 76°F	17°C / 62°F	21°C / 69°F	223 hours	139.17 mm / 5.48 In	9 days	1013 mb / 30 In
July	27°C / 81°F	20°C / 67°F	23°C / 74°F	235 hours	99.70 mm / 3.93 In	8 days	1015 mb / 30 In
August	27°C / 81°F	19°C / 67°F	23°C / 73°F	247 hours	96.38 mm / 3.79 In	8 days	1015 mb / 30 In
September	24°C / 75°F	16°C / 61°F	20°C / 67°F	235 hours	76.20 mm / 3.00 In	6 days	1017 mb / 31 In
October	17°C / 62°F	9°C / 49°F	13°C / 55°F	183 hours	107.96 mm / 4.25 In	8 days	1016 mb / 30 In
November	9°C / 48°F	3°C / 37°F	6°C / 42°F	175 hours	66.90 mm / 2.63 In	6 days	1019 mb / 31 In
December	3°C / 37°F	-2°C / 28°F	0°C / 32°F	120 hours	68.67 mm / 2.70 In	7 days	1019 mb / 31 In

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