Crystal Lake 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.
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Tue 10 Feb, 2026 Weather in Crystal Lake

Sunrise: 06:56 AM Sunset: 05:20 PM	Moonrise: 02:02 AM Moonset: 10:49 AM	Max: 1.4 °c	Min: -1.9 °c	Avg: -0.2 °c	Precip: 0.00 mm	Max Wind: 26.3 kph

	Tue 10 0:00 am	Tue 10 3:00 am	Tue 10 6:00 am	Tue 10 9:00 am	Tue 10 12:00 pm	Tue 10 3:00 pm	Tue 10 6:00 pm	Tue 10 9:00 pm
Icon
Temp	-1.8°c	-1.9°c	-0.9°c	0.0°c	0.8°c	1.1°c	1.4°c	0.0°c
Wind	21.2 kmph	16.6 kmph	19.8 kmph	20.5 kmph	25.2 kmph	26.3 kmph	24.1 kmph	23.4 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	48%	90%	100%	100%	94%	98%	74%	37%
Humidity	94%	97%	98%	94%	84%	81%	84%	84%
Pressure	1014 mb	1011 mb	1012 mb	1015 mb	1017 mb	1018 mb	1019 mb	1021 mb

Crystal Lake Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-3°C / 27°F	-9°C / 15°F	-6°C / 21°F	108 hours	53.67 mm / 2.11 In	8 days	1019 mb / 31 In
February	0°C / 31°F	-8°C / 18°F	-4°C / 25°F	115 hours	58.01 mm / 2.28 In	7 days	1019 mb / 31 In
March	7°C / 45°F	-1°C / 30°F	3°C / 37°F	138 hours	87.38 mm / 3.44 In	7 days	1018 mb / 31 In
April	13°C / 55°F	4°C / 39°F	8°C / 47°F	132 hours	125.72 mm / 4.95 In	9 days	1014 mb / 30 In
May	19°C / 67°F	10°C / 50°F	15°C / 58°F	172 hours	140.45 mm / 5.53 In	10 days	1015 mb / 30 In
June	25°C / 77°F	15°C / 60°F	20°C / 68°F	204 hours	147.90 mm / 5.82 In	9 days	1013 mb / 30 In
July	27°C / 80°F	18°C / 64°F	22°C / 72°F	218 hours	111.04 mm / 4.37 In	8 days	1015 mb / 30 In
August	26°C / 79°F	17°C / 63°F	21°C / 71°F	225 hours	104.30 mm / 4.11 In	8 days	1015 mb / 30 In
September	23°C / 74°F	14°C / 56°F	18°C / 64°F	221 hours	77.76 mm / 3.06 In	6 days	1017 mb / 31 In
October	16°C / 60°F	7°C / 45°F	11°C / 52°F	166 hours	99.97 mm / 3.94 In	7 days	1016 mb / 30 In
November	8°C / 46°F	0°C / 33°F	4°C / 39°F	167 hours	68.74 mm / 2.71 In	5 days	1019 mb / 31 In
December	1°C / 34°F	-5°C / 24°F	-2°C / 29°F	118 hours	63.58 mm / 2.50 In	7 days	1019 mb / 31 In

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