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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Wed 30 Apr, 2025 Weather in Dekalb

Sunrise: 05:52 AM Sunset: 07:53 PM	Moonrise: 07:35 AM Moonset: No moonset	Max: 13.7 °c	Min: 5.2 °c	Avg: 9.6 °c	Precip: 5.48 mm	Max Wind: 24.8 kph

	Wed 30 0:00 am	Wed 30 3:00 am	Wed 30 6:00 am	Wed 30 9:00 am	Wed 30 12:00 pm	Wed 30 3:00 pm	Wed 30 6:00 pm	Wed 30 9:00 pm
Icon
Temp	8.9°c	6.0°c	5.2°c	9.2°c	13.7°c	12.9°c	11.6°c	9.1°c
Wind	11.9 kmph	14.4 kmph	15.1 kmph	22.7 kmph	18.7 kmph	15.1 kmph	15.8 kmph	16.6 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	1.83 mm
Cloud	63%	64%	91%	75%	92%	80%	93%	98%
Humidity	77%	82%	81%	61%	50%	49%	55%	77%
Pressure	1022 mb	1022 mb	1023 mb	1023 mb	1020 mb	1018 mb	1016 mb	1014 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 / 40°F	9°C / 48°F	134 hours	138.82 mm / 5.47 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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