Chicago-O'Hare International, Illinois
Almanac for November 21, 2009

Temperature & precipitation
Key: T = Trace of precipitation; MM = data not available
Actual Normal Record Last year
Today
High temperature--44°72° (1913)45°
Low temperature--30°1° (1880)33°
Yesterday
High temperature54°45°68° (1930)36°
Low temperature42°30°8° (1873)22°
Precipitation Trace " 0.10 " 1.23 " ( 1970 ) Trace "
Month-to-date precip. 0.30 " 2.01 "-- 1.00 "
Year-to-date precip. 38.91 " 32.84 "-- 44.28 "

Degree Days
  Yesterday Normal
Heating Degree Days 17 27
Month to date heating degree days 346 464
Since 1 July heating degree days 916 992
Cooling Degree Days 0 0
Month to date cooling degree days 0 0
Year to date cooling degree days 589 830

Sun & moon
Sunrise6:49 AM Moonrise 10:56 AM
Sunset4:25 PM Moonset 8:39 PM

Upcoming moon phases:

First Qtr
November 24, 2009

Full
December 2, 2009

Last Qtr
December 8, 2009

New
December 16, 2009

Air pollution
EPA forecast for: Chicago

Current Air Quality: Moderate Pollutant: PM2.5
Sat Air Quality: Moderate Pollutant: PM2.5
Sun Air Quality: Moderate Pollutant: PM2.5
Mon Air Quality: Moderate Pollutant: PM2.5
Detailed forecasts from the South Coast Air Quality Management District

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