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October 2023 Weather History at Chicago O'Hare International Airport United States

This report shows the past weather for Chicago O'Hare International Airport, providing a weather history for October 2023. It features all historical weather data series we have available, including the Chicago O'Hare International Airport temperature history for October 2023. 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 October 2023

History:JFMAMJJASOctND2022202120202019
Temperature history in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313120°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FSepNov
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 October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Hourly Temperature in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNovcoldcoolwarmcomfortablevery cold
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 October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Cloud Cover in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
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 October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Daily Precipitation in October 2023 at Chicago O'Hare International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 inSepNov
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Observed Weather in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
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
Thu, Oct 5 Thunderstorm with Heavy Rain, Thunderstorm with Light Rain, Thunderstorm with Rain, Rain, Light Rain, Mist0.30 in+TSRA, -TSRA, TSRA, RA, -RA, BR
Fri, Oct 6 Light Rain0.02 in-RA
Wed, Oct 11 Light Rain0.13 in-RA
Thu, Oct 12 Rain, Light Rain, Mist0.22 inRA, -RA, BR
Fri, Oct 13 Rain, Light Rain, Light Drizzle0.27 inRA, -RA, -DZ
Sat, Oct 14 Heavy Rain, Rain, Light Rain, Haze, Mist0.85 in+RA, RA, -RA, HZ, BR
Sun, Oct 15 Light Rain0.01 in-RA
Mon, Oct 16 Light Rain, Light Drizzle0.00 in-RA, -DZ
Wed, Oct 18 Light Rain0.01 in-RA
Thu, Oct 19 Light Rain, Mist0.13 in-RA, BR
Sat, Oct 21 Light Rain, Mist0.02 in-RA, BR
Wed, Oct 25 Light Rain, Light Drizzle, Mist0.10 in-RA, -DZ, BR
Thu, Oct 26 Rain, Light Rain, Mist0.11 inRA, -RA, BR
Fri, Oct 27 Rain, Light Rain, Light Drizzle, Mist0.07 inRA, -RA, -DZ, BR
Sat, Oct 28 Light Rain0.00 in-RA
Sun, Oct 29 Light Rain, Light Drizzle0.01 in-RA, -DZ
Tue, Oct 31 Snow, Light Snow, Fog, Mist0.03 inSN, -SN, FG, BR

Hours of Daylight and Twilight in October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Hours of Daylight and Twilight in October 2023 at Chicago O'Hare International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSepNovnightnightdaydayOct 111 hr, 45 minOct 111 hr, 45 minOct 3110 hr, 24 minOct 3110 hr, 24 minOct 1111 hr, 17 minOct 1111 hr, 17 minOct 2110 hr, 50 minOct 2110 hr, 50 min
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 and Daylight Saving Time in October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Sunrise & Sunset with Twilight and Daylight Saving Time in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMSepNov6:48 AM6:48 AMOct 16:33 PMOct 16:33 PM7:22 AM7:22 AMOct 315:47 PMOct 315:47 PM6:59 AM6:59 AMOct 116:16 PMOct 116:16 PM7:10 AM7:10 AMOct 216:01 PMOct 216:01 PM
The solar day over the course of October 2023. 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 October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Solar Elevation and Azimuth in October 2023 at Chicago O'Hare International AirportOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMSepNov00101020203030400010102020303040
northeastsouthwest
Solar elevation and azimuth over the course of October 2023. 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 October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Moon Rise, Set & Phases in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSepNovSep 294:58 AMSep 294:58 AMOct 1412:56 PMOct 1412:56 PMOct 283:25 PMOct 283:25 PM6:31 PM6:31 PM6:53 AM6:53 AM6:51 AM6:51 AM6:13 PM6:13 PM5:44 PM5:44 PM8:17 AM8:17 AM
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.
Oct 2023IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
95%-9:28 AMWNW7:46 PMENE2:19 AMS229,119 mi
2
89%-10:44 AMWNW8:17 PMENE3:10 AMS232,642 mi
3
81%-11:58 AMNW8:55 PMNE4:03 AMS236,524 mi
4
71%-1:06 PMNW9:40 PMNE4:57 AMS240,422 mi
5
61%-2:06 PMNW10:33 PMNE5:52 AMS244,026 mi
6
50%-2:56 PMNW11:32 PMNE6:46 AMS247,092 mi
7
41%-3:36 PMNW-7:37 AMS249,455 mi
8
31%12:34 AMNE4:08 PMWNW-8:26 AMS251,031 mi
9
23%1:38 AMENE4:35 PMWNW-9:11 AMS251,813 mi
10
15%2:42 AMENE4:57 PMWNW-9:53 AMS251,851 mi
11
9%3:44 AMENE5:17 PMW-10:34 AMS251,239 mi
12
4%4:46 AME5:35 PMW-11:13 AMS250,099 mi
13
1%5:48 AME5:54 PMW-11:53 AMS248,557 mi
14
0%6:51 AME6:13 PMWSW-12:33 PMS246,734 mi
15
1%7:56 AMESE6:35 PMWSW-1:16 PMS244,730 mi
16
4%9:03 AMESE7:00 PMWSW-2:02 PMS242,618 mi
17
10%10:13 AMESE7:32 PMWSW-2:53 PMS240,443 mi
18
17%11:24 AMSE8:12 PMSW-3:48 PMS238,232 mi
19
26%12:32 PMSE9:03 PMSW-4:47 PMS236,006 mi
20
37%1:33 PMSE10:05 PMSW-5:49 PMS233,798 mi
21
50%2:25 PMSE11:17 PMSW-6:51 PMS231,677 mi
22
60%3:06 PMESE--7:50 PMS229,751 mi
23
72%-12:34 AMWSW3:40 PMESE8:46 PMS228,169 mi
24
82%-1:53 AMWSW4:08 PMESE9:38 PMS227,103 mi
25
90%-3:11 AMWSW4:32 PME10:28 PMS226,723 mi
26
96%-4:27 AMW4:55 PME11:17 PMS227,162 mi
27
98%-5:44 AMW5:19 PME--
28
100%-7:00 AMWNW5:44 PMENE12:05 AMS228,479 mi
29
100%-8:17 AMWNW6:13 PMENE12:56 AMS230,637 mi
30
97%-9:34 AMWNW6:48 PMNE1:48 AMS233,492 mi
31
93%-10:46 AMNW7:30 PMNE2:43 AMS236,814 mi

Humidity Comfort Levels in October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Humidity Comfort Levels in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
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 October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Wind Speed in October 2023 at Chicago O'Hare International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mphSepNov
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Hourly Wind Speed in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
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 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Hourly Wind Direction in 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in October 2023 at Chicago O'Hare International Airport

History:JFMAMJJASOctND2022202120202019
Atmospheric Pressure in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHgSepNov
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

Reports by Month

Reports by Month at Chicago O'Hare International Airport19401950196019701980199020002010202019461946194719471948194819491949195019501951195119521952195319531954195419551955195619561957195719581958195919591960196019611961196219621963196319641964196519651966196619671967196819681969196919701970197119711972197219731973197419741975197519761976197719771978197819791979198019801981198119821982198319831984198419851985198619861987198719881988198919891990199019911991199219921993199319941994199519951996199619971997199819981999199920002000200120012002200220032003200420042005200520062006200720072008200820092009201020102011201120122012201320132014201420152015201620162017201720182018201920192020202020212021202220222023202320242024
METARISDboth
The number of reports per month over the entire history of this station.

Number of Reports by Day in October 2023 at Chicago O'Hare International Airport Fall 2023

Number of Reports by Day in October 2023 at Chicago O'Hare International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310024244848SepNov
regularspecialcorrection
The number of reports per day.

Reports by Hour in October 2023 at Chicago O'Hare International Airport Fall 2023

Reports by Hour in October 2023 at Chicago O'Hare International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMSepNov
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 October 2023.

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.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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