National Weather Station Record at Chicago’s O’Hare for 3-Day Period from May 14 to May 17, 2020

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Heavy rain fell overnight Thursday to Friday and on Sunday May 17, 2020 to bring a total rainfall of 6.25 inches. Here is the hourly record for the past 3 days from Thursday about 11 p.m. to Sunday about 11:00 p.m. For a full view of the table from the National Weather Service at O’Hare International Airport, use a computer, laptop or tablet; or turn device sideways.

D
a
t
e
Time
(cst)
Wind
(mph)
Vis.
(mi.)
Weather Sky Cond. Temperature (ºF) Relative
Humidity
Wind
Chill
(°F)
Heat
Index
(°F)
Pressure Precipitation (in.)
Air Dwpt 6 hour altimeter
(in)
sea level
(mb)
1 hr 3 hr 6 hr
Max.
17 22:51 S 5 6.00 Light Rain Fog/Mist BKN003 OVC011 64 62 93% NA NA 29.67 1004.4 0.01
17 21:51 E 5 9.00 Overcast OVC004 65 63 93% NA NA 29.68 1004.7 0.33
17 20:51 SW 6 8.00 Overcast BKN003 BKN030 OVC100 65 63 93% NA NA 29.67 1004.5 0.09
17 19:51 SE 3 5.00 Rain Fog/Mist SCT003 BKN030 OVC095 65 63 93% NA NA 29.67 1004.5 0.24
17 18:51 SE 5 1.75 Thunderstorm Heavy Rain Fog/Mist OVC011CB 65 63 68 64 93% NA NA 29.67 1004.5 1.28 1.69
17 17:51 E 8 4.00 Rain Fog/Mist BKN008 BKN019 OVC036 66 64 93% NA NA 29.66 1004.2 0.24
17 16:51 SE 12 6.00 Rain Fog/Mist OVC010 67 64 91% NA NA 29.68 1005.0 0.10
17 15:51 S 13 10.00 Light Drizzle BKN009 BKN013 OVC029 68 64 87% NA NA 29.69 1005.1 0.02 0.07
17 14:51 SE 10 6.00 Light Rain Fog/Mist BKN009 OVC015 67 64 91% NA NA 29.71 1006.0 0.04
17 13:51 SE 13 3.00 Light Rain Fog/Mist BKN009 OVC040 67 64 91% NA NA 29.73 1006.5 0.01
17 12:51 SE 10 4.00 Light Rain Fog/Mist OVC005 64 61 64 57 90% NA NA 29.74 1007.0 0.02 0.33
17 11:51 SE 8 4.00 Light Rain Fog/Mist OVC005 62 59 90% NA NA 29.77 1008.1 0.07
17 10:51 SE 10 4.00 Rain Fog/Mist OVC005 60 57 90% NA NA 29.81 1009.5 0.04
17 09:51 SE 13 4.00 Light Rain Fog/Mist OVC005 59 56 90% NA NA 29.82 1009.8 0.10 0.20
17 08:51 E 13 3.00 Rain Fog/Mist OVC005 58 56 93% NA NA 29.83 1010.0 0.07
17 07:51 E 8 3.00 Light Rain Fog/Mist OVC005 57 54 90% NA NA 29.86 1011.0 0.03
17 06:51 E 8 3.00 Light Rain Fog/Mist OVC006 57 54 57 53 90% NA NA 29.87 1011.5 0.13 0.61
17 05:51 E 7 4.00 Rain Fog/Mist OVC011 56 53 90% NA NA 29.89 1012.1 0.08
17 04:51 E 9 9.00 Light Rain OVC015 56 53 90% NA NA 29.90 1012.3 0.05
17 03:51 E 9 8.00 Light Rain OVC017 57 53 87% NA NA 29.92 1013.0 0.04 0.35
17 02:51 E 9 6.00 Light Rain Fog/Mist BKN019 OVC024 57 54 90% NA NA 29.94 1013.6 0.09
17 01:51 NE 5 4.00 Rain Fog/Mist BKN017 OVC024 55 53 93% NA NA 29.97 1014.8 0.22
17 00:51 N 8 3.00 Heavy Rain Fog/Mist BKN037 OVC055 53 50 56 52 89% NA NA 29.99 1015.6 0.34 0.54
16 23:51 NE 10 6.00 Rain Fog/Mist BKN038 OVC050 53 49 86% NA NA 30.01 1016.2 0.20
16 22:51 N 14 10.00 Light Rain BKN060 OVC100 54 46 75% NA NA 30.04 1017.2
16 21:51 NE 13 10.00 Overcast SCT060 OVC100 54 43 67% NA NA 30.06 1017.8
16 20:51 NE 12 10.00 Overcast FEW100 OVC150 53 42 66% NA NA 30.05 1017.6
16 19:51 NE 17 10.00 Overcast FEW100 OVC150 53 42 66% NA NA 30.06 1017.8
16 18:51 NE 18 10.00 Overcast FEW100 OVC200 56 46 67 56 70% NA NA 30.05 1017.7
16 17:51 NE 16 G 23 10.00 Overcast OVC200 59 49 69% NA NA 30.05 1017.6
16 16:51 NE 13 10.00 Overcast FEW150 BKN200 OVC250 62 51 67% NA NA 30.05 1017.8
16 15:51 NE 13 10.00 Overcast FEW150 OVC250 63 49 60% NA NA 30.08 1018.5
16 14:51 NE 16 10.00 Overcast FEW150 SCT200 OVC250 66 50 56% NA NA 30.09 1018.8
16 13:51 NE 14 10.00 Mostly Cloudy FEW130 BKN250 65 50 59% NA NA 30.10 1019.3
16 12:51 NE 9 10.00 Mostly Cloudy BKN250 65 52 65 52 63% NA NA 30.11 1019.5
16 11:51 NE 12 10.00 Partly Cloudy FEW050 SCT250 63 52 68% NA NA 30.11 1019.6
16 10:51 NE 12 10.00 Partly Cloudy FEW050 SCT250 61 51 70% NA NA 30.12 1019.8
16 09:51 NE 12 10.00 Partly Cloudy FEW040 SCT250 60 50 70% NA NA 30.12 1019.8
16 08:51 NE 9 10.00 Mostly Cloudy FEW040 BKN250 59 49 69% NA NA 30.11 1019.5
16 07:51 NE 10 10.00 Mostly Cloudy SCT050 BKN250 55 47 74% NA NA 30.12 1019.7
16 06:51 NE 10 10.00 Partly Cloudy SCT250 52 46 54 50 80% NA NA 30.09 1018.8
16 05:51 NE 8 10.00 Mostly Cloudy SCT050 BKN250 50 44 80% 47 NA 30.07 1018.2
16 04:51 NE 10 10.00 Mostly Cloudy FEW050 BKN250 50 44 80% 46 NA 30.06 1017.9
16 03:51 N 8 10.00 Overcast FEW041 OVC250 51 44 77% NA NA 30.06 1017.6
16 02:51 NE 10 10.00 Overcast FEW041 OVC250 51 45 80% NA NA 30.06 1017.6
16 01:51 N 8 10.00 Mostly Cloudy FEW041 BKN250 52 45 77% NA NA 30.05 1017.3
16 00:51 NE 9 10.00 Mostly Cloudy FEW040 BKN250 54 47 75 54 77% NA NA 30.04 1017.1
15 23:51 N 10 10.00 Mostly Cloudy SCT040 BKN250 56 52 87% NA NA 30.03 1016.8
15 22:51 NE 13 10.00 Mostly Cloudy FEW050 BKN250 58 54 87% NA NA 30.02 1016.5
15 21:51 NE 14 10.00 Mostly Cloudy FEW060 BKN250 64 53 68% NA NA 30.01 1016.0
15 20:51 E 6 10.00 Mostly Cloudy FEW060 BKN250 66 54 65% NA NA 29.97 1014.5
15 19:51 E 7 10.00 Mostly Cloudy FEW060 BKN250 70 56 61% NA NA 29.94 1013.7
15 18:51 NW 5 10.00 Mostly Cloudy FEW055 SCT070 BKN250 75 53 79 72 46% NA NA 29.92 1012.8
15 17:51 W 5 10.00 Mostly Cloudy SCT055 BKN250 76 53 45% NA 78 29.91 1012.6
15 16:51 W 9 10.00 Mostly Cloudy SCT055 BKN250 77 52 42% NA 78 29.91 1012.3
15 15:51 W 10 10.00 Mostly Cloudy SCT055 BKN250 77 51 40% NA 78 29.90 1012.3
15 14:51 N 5 10.00 Mostly Cloudy SCT045 BKN250 76 56 50% NA 78 29.90 1012.2
15 13:51 NW 7 10.00 Mostly Cloudy SCT039 SCT150 BKN250 75 57 54% NA NA 29.90 1012.0
15 12:51 NW 6 10.00 Overcast BKN029 OVC250 72 58 73 63 61% NA NA 29.90 1012.1 0.03
15 11:51 NW 6 10.00 Overcast FEW013 BKN018 OVC150 70 60 71% NA NA 29.90 1012.2
15 10:51 W 6 10.00 Overcast SCT009 OVC015 65 61 87% NA NA 29.87 1011.1
15 09:51 W 6 5.00 Fog/Mist OVC007 64 61 90% NA NA 29.86 1010.8 0.01 0.03
15 08:51 SW 7 3.00 Fog/Mist BKN006 OVC022 63 61 93% NA NA 29.85 1010.6 0.01
15 07:51 SW 7 5.00 Light Rain Fog/Mist BKN006 BKN020 OVC029 63 60 90% NA NA 29.84 1010.2 0.01
15 06:51 SW 7 8.00 Overcast SCT005 BKN039 OVC150 63 60 63 62 90% NA NA 29.83 1009.8 0.68
15 05:51 SW 6 8.00 Overcast FEW005 BKN045 OVC150 62 60 93% NA NA 29.79 1008.5 0.01
15 04:51 S 5 5.00 Rain Fog/Mist SCT009 BKN026 OVC050 63 60 90% NA NA 29.79 1008.5 0.08
15 03:51 E 7 10.00 Light Rain OVC095 63 60 90% NA NA 29.77 1007.9 0.05 0.59
15 02:51 N 16 10.00 Light Rain OVC100 63 60 90% NA NA 29.75 1007.1 0.11
15 01:51 N 10 7.00 Rain FEW060 BKN075 OVC100 62 60 93% NA NA 29.79 1008.5 0.43
15 00:51 Calm 3.00 Thunderstorm Heavy Rain Fog/Mist BKN012 OVC029CB 63 62 73 63 97% NA NA 29.77 1007.9 1.96 2.26
14 23:51 S 8 10.00 Thunderstorm Light Rain FEW008 BKN048CB OVC085 66 63 90% NA NA 29.81 1009.1 0.30

Rain gauge with over 3.5 inches in Arlington Heights on May 15, 2020
Rain gauge with over 3.5 inches in Arlington Heights on May 15, 2020.
Weather record from the National Weather Station at O’Hare International Airport covering the three day period when 6.25 inches of rain fell in Arlington Heights.

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