Dekalb 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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Mon 28 Apr, 2025 Weather in Dekalb

Sunrise: 05:55 AM Sunset: 07:51 PM	Moonrise: 06:05 AM Moonset: 09:36 PM	Max: 27.1 °c	Min: 10.9 °c	Avg: 18.2 °c	Precip: 4.25 mm	Max Wind: 37.1 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	11.9°c	10.9°c	11.9°c	13.8°c	17.2°c	26.2°c	26.7°c	23.8°c
Wind	18.4 kmph	15.5 kmph	20.2 kmph	24.1 kmph	30.6 kmph	34.6 kmph	35.6 kmph	37.1 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	26%	43%	66%	69%	94%	0%	47%	75%
Humidity	77%	87%	80%	73%	84%	61%	66%	77%
Pressure	1021 mb	1020 mb	1020 mb	1018 mb	1016 mb	1011 mb	1009 mb	1009 mb

Dekalb Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-2°C / 28°F	-9°C / 15°F	-6°C / 22°F	107 hours	55.21 mm / 2.17 In	8 days	1020 mb / 31 In
February	0°C / 32°F	-8°C / 18°F	-4°C / 25°F	115 hours	60.63 mm / 2.39 In	6 days	1020 mb / 31 In
March	8°C / 46°F	-1°C / 31°F	3°C / 38°F	141 hours	96.95 mm / 3.82 In	7 days	1018 mb / 31 In
April	14°C / 57°F	4°C / 39°F	9°C / 48°F	138 hours	137.09 mm / 5.40 In	9 days	1014 mb / 30 In
May	20°C / 69°F	11°C / 51°F	16°C / 60°F	169 hours	158.53 mm / 6.24 In	11 days	1015 mb / 30 In
June	25°C / 78°F	16°C / 60°F	21°C / 69°F	199 hours	162.98 mm / 6.42 In	10 days	1013 mb / 30 In
July	27°C / 80°F	18°C / 64°F	22°C / 72°F	211 hours	107.66 mm / 4.24 In	8 days	1015 mb / 30 In
August	26°C / 79°F	17°C / 62°F	21°C / 71°F	221 hours	99.23 mm / 3.91 In	8 days	1015 mb / 30 In
September	24°C / 75°F	13°C / 56°F	18°C / 65°F	225 hours	85.48 mm / 3.37 In	6 days	1017 mb / 31 In
October	16°C / 61°F	7°C / 45°F	11°C / 52°F	171 hours	102.54 mm / 4.04 In	7 days	1016 mb / 30 In
November	8°C / 47°F	0°C / 33°F	4°C / 40°F	173 hours	68.72 mm / 2.71 In	5 days	1019 mb / 31 In
December	2°C / 35°F	-4°C / 24°F	-1°C / 30°F	122 hours	64.33 mm / 2.53 In	7 days	1019 mb / 31 In

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