August 2013 Weather History at Chicago O'Hare International Airport Illinois, United States

This report shows the past weather for Chicago O'Hare International Airport, providing a weather history for August 2013. It features all historical weather data series we have available, including the Chicago O'Hare International Airport temperature history for August 2013. You can drill down from year to month and even day level reports by clicking on the graphs.

Chicago O'Hare International Airport Temperature History August 2013

Temperature history in August 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313145°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°FJulSep
The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.

Hourly Temperature in August 2013 at Chicago O'Hare International Airport

Hourly Temperature in August 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSepcoolwarmhotcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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Cloud Cover in August 2013 at Chicago O'Hare International Airport

Cloud Cover in August 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
no significant cloudno cloud detectedceiling and visibility ok
The hourly reported cloud coverage, categorized by the percentage of the sky covered by clouds.

Daily Precipitation in August 2013 at Chicago O'Hare International Airport

Daily Precipitation in August 2013 at Chicago O'Hare International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 inJulSep
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in August 2013 at Chicago O'Hare International Airport

Snow Depth in August 2013 at Chicago O'Hare International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 inJulSep
The daily measured snow depth, where available.

Observed Weather in August 2013 at Chicago O'Hare International Airport

Observed Weather in August 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
foghazedrizzlelight rainmoderate rainheavy rainfreezing rainsleetsnow grainslight snowmoderate snowheavy snowhailthunderstorm
The hourly observed weather, color coded by category (in order of severity). If multiple reports are present, the most severe code is shown.
DayObservationsPrecipitationCodes
Fri, Aug 2 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Heavy Rain, Light Rain, Mist0.63 inTS, +TSRA, -TSRA, TSRA, +RA, -RA, BR
Sun, Aug 4 Light Rain0.00 in-RA
Mon, Aug 5 Rain, Light Rain0.07 inRA, -RA
Thu, Aug 8 HazeHZ
Sun, Aug 11 Light Rain0.01 in-RA
Mon, Aug 12 Heavy Rain, Light Rain, Light Drizzle, Mist0.27 in+RA, -RA, -DZ, BR
Wed, Aug 21 Thunderstorm with Light Rain, Light Rain0.01 in-TSRA, -RA
Thu, Aug 22 Rain, Light Rain0.23 inRA, -RA
Fri, Aug 23 MistBR
Thu, Aug 29 Haze, MistHZ, BR
Fri, Aug 30 Thunderstorm, Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Light Rain, Haze, Mist0.36 inTS, +TSRA, -TSRA, -RA, HZ, BR
Sat, Aug 31 Thunderstorm, Thunderstorm with Light Rain, Light Rain0.07 inTS, -TSRA, -RA

Hours of Daylight and Twilight in August 2013 at Chicago O'Hare International Airport

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

Sunrise & Sunset with Twilight in August 2013 at Chicago O'Hare International Airport

Sunrise & Sunset with Twilight in August 2013 at Chicago O'Hare International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMJulSep5:45 AM5:45 AMAug 18:09 PMAug 18:09 PM6:16 AM6:16 AMAug 317:26 PMAug 317:26 PM5:55 AM5:55 AMAug 117:57 PMAug 117:57 PM6:06 AM6:06 AMAug 217:42 PMAug 217:42 PM
The solar day over the course of August 2013. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Solar Elevation and Azimuth in August 2013 at Chicago O'Hare International Airport

Solar Elevation and Azimuth in August 2013 at Chicago O'Hare International AirportAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMJulSep00101020203030404050506000101020203030404050506060
northeastsouthwest
Solar elevation and azimuth over the course of August 2013. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

Moon Rise, Set & Phases in August 2013 at Chicago O'Hare International Airport

Moon Rise, Set & Phases in August 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepAug 64:51 PMAug 64:51 PMAug 208:45 PMAug 208:45 PMSep 56:37 AMSep 56:37 AM5:42 AM5:42 AM7:37 PM7:37 PM7:13 PM7:13 PM6:49 AM6:49 AM6:33 AM6:33 AM7:08 PM7:08 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Aug 2013IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
24%1:20 AMENE4:19 PMWNW-8:49 AMS251,170 mi
2
16%2:06 AMENE5:07 PMWNW-9:37 AMS252,000 mi
3
10%2:55 AMENE5:51 PMWNW-10:24 AMS252,153 mi
4
5%3:48 AMENE6:30 PMWNW-11:11 AMS251,714 mi
5
1%4:44 AMENE7:05 PMWNW-11:57 AMS250,782 mi
6
0%5:42 AMENE7:37 PMWNW-12:42 PMS249,453 mi
7
1%6:41 AMENE8:07 PMW-1:26 PMS247,806 mi
8
4%7:41 AME8:36 PMW-2:11 PMS245,903 mi
9
8%8:42 AME9:05 PMW-2:55 PMS243,783 mi
10
15%9:44 AME9:34 PMW-3:40 PMS241,469 mi
11
24%10:47 AME10:06 PMWSW-4:27 PMS238,986 mi
12
34%11:52 AMESE10:41 PMWSW-5:17 PMS236,370 mi
13
45%12:58 PMESE11:21 PMWSW-6:10 PMS233,693 mi
14
50%2:04 PMESE--7:06 PMS231,075 mi
15
68%-12:07 AMWSW3:08 PMESE8:05 PMS228,687 mi
16
79%-1:01 AMWSW4:09 PMESE9:06 PMS226,748 mi
17
88%-2:03 AMWSW5:04 PMESE10:07 PMS225,487 mi
18
95%-3:11 AMWSW5:52 PMESE11:07 PMS225,105 mi
19
97%-4:23 AMWSW6:35 PMESE--
20
100%-5:36 AMWSW7:13 PME12:05 AMS225,725 mi
21
100%-6:49 AMW7:48 PME1:00 AMS227,358 mi
22
98%-8:00 AMW8:20 PME1:52 AMS229,891 mi
23
93%-9:08 AMW8:53 PME2:42 AMS233,105 mi
24
87%-10:15 AMWNW9:25 PMENE3:31 AMS236,713 mi
25
78%-11:19 AMWNW10:00 PMENE4:20 AMS240,401 mi
26
69%-12:20 PMWNW10:37 PMENE5:08 AMS243,872 mi
27
59%-1:18 PMWNW11:17 PMENE5:55 AMS246,871 mi
28
50%-2:12 PMWNW-6:43 AMS249,210 mi
29
39%12:02 AMENE3:01 PMWNW-7:31 AMS250,773 mi
30
30%12:50 AMENE3:47 PMWNW-8:19 AMS251,514 mi
31
21%1:41 AMENE4:27 PMWNW-9:06 AMS251,458 mi

Humidity Comfort Levels in August 2013 at Chicago O'Hare International Airport

Humidity Comfort Levels in August 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The hourly reported humidity comfort level, categorized by dew point. The shaded overlays indicate night and civil twilight.

Wind Speed in August 2013 at Chicago O'Hare International Airport

Wind Speed in August 2013 at Chicago O'Hare International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphJulSep
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in August 2013 at Chicago O'Hare International Airport

Hourly Wind Speed in August 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
0 mph calm 1 mph light air 4 mph light breeze 8 mph gentle breeze 13 mph moderate breeze 18 mph fresh breeze 25 mph strong breeze 31 mph near gale 39 mph gale 47 mph strong gale 55 mph storm 64 mph violent storm 73 mph hurricane force
The hourly reported wind speed, color coded into bands according to the Beaufort scale. The shaded overlays indicate night and civil twilight.

Hourly Wind Direction in 2013 at Chicago O'Hare International Airport

Hourly Wind Direction in 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in August 2013 at Chicago O'Hare International Airport

Atmospheric Pressure in August 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.7 inHg29.7 inHg29.8 inHg29.8 inHg29.9 inHg29.9 inHg30.0 inHg30.0 inHg30.1 inHg30.1 inHg30.2 inHg30.2 inHg30.3 inHg30.3 inHgJulSep
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

Number of Reports by Day in August 2013 at Chicago O'Hare International Airport Summer 2013

Number of Reports by Day in August 2013 at Chicago O'Hare International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131002020404060608080JulSep
regularspecialcorrection
The number of reports per day.

Reports by Hour in August 2013 at Chicago O'Hare International Airport Summer 2013

Reports by Hour in August 2013 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMJulSep
regularspecialcorrection
Indication of what types of reports were recorded during each hour.

This report graphically illustrates the historical weather reports recorded by the weather station at Chicago O'Hare International Airport in August 2013.

METAR Reports

Airport weather stations throughout the world routinely issue METAR weather reports . Such reports are used by pilots, air traffic controllers, meteorologists, climatologists, and other researchers. They are published via radio transmission and on the internet. We have been collecting and archiving published METAR reports since 2011, and have found third-party sources for archived reports from years prior to that.

ISD Reports

The Integrated Surface Database (ISD), maintained and published by NOAA's National Center for Environmental Information , consists of hourly and synoptic weather reports from a variety of sources. We use ISD data to complement and backfill for our METAR archive.

Other Data

The sources for the averages shown in the daily temperature chart are discussed in greater detail on this station's Averages Report.

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

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