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Chicago US

Autumn weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

Maximum Temperatures

Minimum Temperatures

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions

Sunny Weather

Period	Chicago
Sep 1	7.5 hours/day
Sep 8	7.4 hours/day
Sep 15	7.5 hours/day
Sep 22	6.8 hours/day
Oct 1	4.8 hours/day
Oct 8	5.3 hours/day
Oct 15	5.8 hours/day
Oct 22	3.1 hours/day
Nov 1	4.7 hours/day
Nov 8	4.4 hours/day
Nov 15	2.3 hours/day
Nov 22	3.5 hours/day
Average	5.3 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Humidity

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Astronomy

Sunrise Time

Sunrise times are output in the local timezone of each place.

Sunset Time

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	Chicago
Sep 1	12:19 hours
Sep 8	12:07 hours
Sep 15	11:55 hours
Sep 22	11:40 hours
Oct 1	11:26 hours
Oct 8	11:15 hours
Oct 15	10:58 hours
Oct 22	10:35 hours
Nov 1	10:14 hours
Nov 8	9:33 hours
Nov 15	9:27 hours
Nov 22	9:22 hours
Average	10:54 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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Weather in Chicago

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Daily Forecast

Autumn weather

Temperatures

Conditions

Astronomy

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	Chicago US
Today Sun May 18
Mon May 19
Tue May 20
Wed May 21
Thu May 22
Fri May 23
Sat May 24

Period	Chicago
Sep 1	77.5°F
Sep 8	74.7°F
Sep 15	77.7°F
Sep 22	71.2°F
Oct 1	69.1°F
Oct 8	65.1°F
Oct 15	60.1°F
Oct 22	55.9°F
Nov 1	53.6°F
Nov 8	47.7°F
Nov 15	45.1°F
Nov 22	43.0°F
Average	61.7°F

Period	Chicago
Sep 1	65.3°F
Sep 8	63.3°F
Sep 15	65.3°F
Sep 22	60.8°F
Oct 1	57.9°F
Oct 8	53.6°F
Oct 15	47.5°F
Oct 22	46.6°F
Nov 1	43.5°F
Nov 8	37.2°F
Nov 15	35.4°F
Nov 22	33.8°F
Average	50.8°F

Period	Chicago
Sep 1	0.1in
Sep 8	0.1in
Sep 15	0.1in
Sep 22	0.1in
Oct 1	0.1in
Oct 8	0.2in
Oct 15	0.1in
Oct 22	0.2in
Nov 1	0.1in
Nov 8	0.1in
Nov 15	0.1in
Nov 22	0.1in
Average	0.1in

Period	Chicago
Sep 1	12.8mph
Sep 8	11.4mph
Sep 15	11.3mph
Sep 22	13.4mph
Oct 1	12.9mph
Oct 8	14.0mph
Oct 15	15.0mph
Oct 22	15.0mph
Nov 1	14.6mph
Nov 8	14.6mph
Nov 15	16.0mph
Nov 22	14.6mph
Average	13.8mph

Period	Chicago
Sep 1	63.7%
Sep 8	65.4%
Sep 15	67.3%
Sep 22	66.0%
Oct 1	66.1%
Oct 8	64.7%
Oct 15	59.3%
Oct 22	67.5%
Nov 1	65.2%
Nov 8	64.6%
Nov 15	70.7%
Nov 22	69.8%
Average	65.9%

Period	Chicago
Sep 1	6:19
Sep 8	6:26
Sep 15	6:34
Sep 22	6:42
Oct 1	6:51
Oct 8	6:59
Oct 15	7:07
Oct 22	7:17
Nov 1	7:04
Nov 8	6:35
Nov 15	6:44
Nov 22	6:53
Average	6:48

Period	Chicago
Sep 1	19:19
Sep 8	19:07
Sep 15	18:55
Sep 22	18:40
Oct 1	18:26
Oct 8	18:15
Oct 15	18:04
Oct 22	17:52
Nov 1	17:17
Nov 8	16:33
Nov 15	16:27
Nov 22	16:22
Average	17:54