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 11 Aug, 2026 Weather in Crystal Lake

Sunrise: 05:56 AM Sunset: 08:00 PM	Moonrise: 03:54 AM Moonset: 07:26 PM	Max: 28.0 °c	Min: 21.1 °c	Avg: 23.7 °c	Precip: 15.84 mm	Max Wind: 18.0 kph

	Tue 11 0:00 am	Tue 11 3:00 am	Tue 11 6:00 am	Tue 11 9:00 am	Tue 11 12:00 pm	Tue 11 3:00 pm	Tue 11 6:00 pm	Tue 11 9:00 pm
Icon
Temp	21.7°c	21.1°c	21.6°c	23.9°c	24.4°c	26.0°c	26.8°c	22.5°c
Wind	6.8 kmph	10.4 kmph	8.3 kmph	6.1 kmph	9.0 kmph	4.7 kmph	5.8 kmph	5.0 kmph
Precip	4.10 mm	0.70 mm	0.00 mm	0.80 mm	0.10 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	77%	87%	2%	86%	83%	17%	0%	0%
Humidity	86%	90%	92%	88%	89%	76%	71%	79%
Pressure	1014 mb	1014 mb	1013 mb	1013 mb	1011 mb	1011 mb	1011 mb	1011 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 / 32°F	-8°C / 18°F	-4°C / 25°F	114 hours	57.96 mm / 2.28 In	7 days	1019 mb / 31 In
March	7°C / 45°F	-1°C / 30°F	3°C / 37°F	136 hours	91.15 mm / 3.59 In	7 days	1018 mb / 31 In
April	13°C / 55°F	4°C / 39°F	8°C / 47°F	130 hours	143.11 mm / 5.63 In	9 days	1014 mb / 30 In
May	19°C / 67°F	10°C / 50°F	15°C / 58°F	162 hours	134.11 mm / 5.28 In	9 days	1015 mb / 30 In
June	25°C / 77°F	15°C / 60°F	20°C / 68°F	193 hours	147.30 mm / 5.80 In	8 days	1013 mb / 30 In
July	27°C / 81°F	18°C / 64°F	22°C / 72°F	206 hours	108.47 mm / 4.27 In	7 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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