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Current Month Records

Data collected since 09/01/2010
 
Todays low temperature of 54.7°F surpassed the monthly low of 59.7°F set on 09/03/2010 by -5°
Todays high wind speed of 22.0 mph surpassed the monthly high of 19.0 mph set on 09/03/2010 by 3 mph
Todays low barometer of 999.8 hPa surpassed the monthly low of 1000.3 hPa set on 09/03/2010 by -0.5 hPa
Todays low wind chill of 54.0°F surpassed the monthly low of 59.7°F set on 09/03/2010 by -5.7°
Todays low dew point of 46.0°F surpassed the monthly low of 52.3°F set on 09/03/2010 by -6.3°

Temperature Records
Highest Temperature 93.4°F 9/1/2010
Lowest Temperature 54.8°F 9/4/2010
Highest Heat Index 98.6°F 9/1/2010
Lowest Wind Chill 54.0°F 9/4/2010
Warmest Day (6am - 6pm) 83.1°F 9/1/2010
Warmest Night (6pm - 6am) 76.6°F 9/2/2010
Coldest Day (6am - 6pm) 52.9°F 9/30/2009
Coldest Night (6pm - 6am) 48.9°F 9/20/2009

Wind Records
Maximum Wind Gust 21.0 mph 9/4/2010
Highest Average Speed 10.0 mph 9/1/2010
Highest Daily Wind Run 40.3 miles 9/1/2010

Precipitation Records
Highest Daily Precipitation 0.19 in 9/3/2010
Highest Precipitation Rate 0.040 in/min 9/3/2010
Consecutive Days With Precipitation 58 Days Ending: 9/3/2010
Consecutive Days Without Precipitation 3 Days Ending: 9/3/2010

Humidity Records
Highest Humidity 90% 9/3/2010
Lowest Humidity 42% 9/1/2010
Highest Dewpoint 71.4°F 9/2/2010
Lowest Dewpoint 46.1°F 9/4/2010

Barometer Records
Highest Barormeter 1016.7 hPa 9/1/2010
Lowest Barometer 999.8 hPa 9/4/2010

Random Weather Facts

Weather Terms
Tornado Warning - Strong rotation in a thunderstorm is indicated by Doppler radar or a tornado is sighted by skywarn spotters. These warnings are issued on a county by county basis by the local Weather Forecast office in Chicago/Romeoville.