Nearly a foot (11.81″) fell centered on northwest Illinois’ Stephenson County—a half foot there in the 24 hours ending at 7am CDT Monday morning. (Check out the 72 hour total Doppler radar estimated rainfall ma I’m posting).

By comparison, the entire weekend saw just 0.35″ at O’Hare and 0.58″ at Midway Airport.

Chicago Radar: Track Showers & Storms here

Not all of the Greater Chicago area escaped torrential downpours as my WGN colleague Mark Carroll’s break-out of 24 hour rainfall through early this morning illustrates.

What’s always amazing about warm season rainfall tallies across the area is the extraordinary range in amounts we see time and again.

Here’s a listing from Mark Carroll of some heavier 24 hour rain COCORAHS volunteer observer totals for the period ending 7am CDT this (Monday) morning:

  • IL-WL-180 Mokena 4.4 WNW 3.56 Will
  • IL-WL-142 Mokena 3.4 WNW 3.55 Will
  • IL-WL-42 Mokena 1.3 W 3.41 Will
  • IL-WL-151 New Lenox 1.5 W 3.13 Will
  • IL-WL-97 New Lenox 3.3 E 3.07 Will
  • IL-CK-306 Oak Forest 0.6 N 3.06 Cook
  • IL-WL-159 New Lenox 2.1 S 2.84 Will
  • IL-WL-178 Mokena 2.1 SW 2.62 Will
  • IL-WL-63 New Lenox 1.8 SE 2.43 Will
  • IL-WL-179 New Lenox 2.8 SE 2.15 Will
  • IL-WL-84 Beecher 3.4 ENE 2.00 Will
  • IL-WL-23 Beecher 3.4 SSE 1.90 Will
  • IL-WL-25 Crete 2.6 E 1.87 Will
  • IL-WL-174 Joliet 0.8 E 1.68 Will
  • IL-WL-65 Crete 2.6 SSW 1.56 Will
  • IL-WL-131 Homer Glen 0.7 NNE 1.56 Will
  • IL-KK-49 Kankakee 4.9 NW 1.52 Kankakee
  • IL-WL-100 Joliet 2.9 WNW 1.50 Will
  • IL-WL-26 Manhattan 0.8 ESE 1.49 Will
  • IL-CK-342 Merrionette Park 1.7 NE 1.46 Cook
  • IL-WL-136 Crete 3.3 ENE Franktuary Farm 1.41 Will
  • IL-GY-21 Coal City 2.8 N 1.38 Grundy
  • IL-WL-149 Bult Field-Monee 4.9 SE 1.29 Will
  • IL-WL-175 Joliet 0.7 WNW 1.27 Will
  • IL-CK-364 Evergreen Park 0.4 WNW 1.27 Cook
  • IL-WL-20 Manhattan 4.7 ENE 1.27 Will
  • IL-KN-118 Sleepy Hollow 0.7 W 1.26 Kane
  • IL-KN-86 Elgin 7.5 WSW 1.24 Kane
  • IL-GY-16 Morris 6.4 ESE 1.21 Grundy
  • IL-CK-149 Oak Lawn 0.5 SSW 1.20 Cook
  • IL-WL-99 Manhattan 1.9 SE 1.19 Will
  • IL-CK-50 Palos Park 1.3 SW 1.16 Cook
  • IL-GY-1 Carbon Hill 3.1 N 1.12 Grundy
  • IL-MCH-96 Huntley 1.6 SW 1.10 McHenry
  • IL-WL-16 Homer Glen 0.8 ENE 1.08 Will
  • IL-MCH-95 Cary 0.5 SSW 1.05 McHenry
  • IL-KN-95 Elgin 2.5 W 1.04 Kane
  • IL-KN-119 Maple Park 3.1 SE 1.02 Kane
  • IL-MCH-49 Cary 0.3 NE 1.02 McHenry
  • IL-LK-114 Round Lake Heights 0.5 NE 1.01 Lake
  • IL-CK-152 Chicago Ridge 0.2 WSW 1.00 Cook
  • IL-KN-67 St. Charles 6.0 NW 0.99 Kane
  • IL-GY-37 Mazon 2.4 SE 0.98 Grundy
  • IL-MCH-107 Crystal Lake 3.9 WNW 0.96 McHenry
  • IL-MCH-77 Wonder Lake 1.4 NE 0.95 McHenry
  • IL-WL-96 Wilmington 6.3 NW 0.95 Will
  • IL-CK-316 Oak Lawn 0.8 WSW 0.95 Cook
  • IL-CK-64 Homewood 0.1 ESE 0.92 Cook
  • IL-MCH-83 Crystal Lake 1.0 WSW 0.92 McHenry
  • IL-KN-9 Elgin 1.0 S 0.91 Kane
  • IL-WL-165 Frankfort 1.3 ESE 0.90 Will

LAKE COUNTY, IN

  • IN-LK-99 St. John 2.8 SE 1.24
  • IN-LK-46 St. John 0.2 WSW 1.23
  • IN-LK-98 Griffith 1.2 N 1.21
  • IN-LK-94 Griffith 1.2 N 1.12
  • IN-LK-115 Gary 5.9 ENE 0.76
  • IN-LK-107 Lowell 3.1 NNW 0.73
  • IN-LK-111 Hobart 1.1 S 0.67
  • IN-LK-26 Crown Point 1.1 N 0.66
  • IN-LK-15 Dyer 1.0 WNW 0.65
  • IN-LK-50 Hobart 1.6 E 0.56
  • IN-LK-63 Gary 4.8 ENE 0.51
  • IN-LK-89 Hammond 0.6 SSW 0.47

STEPHENSON COUNTY, IL

  • IL-SP-22 Freeport 1.2 E 6.00 Stephenson
  • IL-SP-25 Freeport 1.7 NW 5.72 Stephenson
  • IL-SP-28 Freeport 4.3 W 4.91 Stephenson
  • IL-SP-29 Freeport 1.5 E 4.88 Stephenson
  • IL-SP-21 Ridott 0.1 NE 4.42 Stephenson
  • IL-SP-26 Freeport 2.9 WSW 4.25 Stephenson