Chicago Loop Weather in September
Chicago Loop in September
The short of it: Chicago Loop in September averages a high of 24 °C (76 °F) and a low of 13 °C (56 °F), with 81 mm (3.2 in) of rain and about 12 h 25 min of daylight. Rated 3 of 5 for a visit; the best months are September and May. Source: TerraClimate climate normals, 1991–2020.
Average high 76° · low 56° · rain 3.2 in. · daylight 12 h 25 min
✦✦✦ Fair for a visit · best months: September & May
Thirty years of records give Chicago Loop an average September high of 76°, a low of 56° and some 3.2 in. of rain. Much like August: highs about 76°, nights near 56°. Easy travelling weather. Wet spells are common — about 3.2 in., the 6th wettest month.
The sun is up for about 12 h 25 min in mid-September, 86 minutes less than a month before.
For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates September 3 of 5 for a visit; it is the best month of the year to come.
Against its neighbours, Chicago Loop runs cooler than most and about as wet in September. Near North Side, 1 mi to the N, sees much the same highs.
September in Chicago Loop, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 6th wettest of 12
- Versus August
- 6° colder, 1.0 in. less rain
- Versus October
- 12° warmer
- Day–night spread
- 20°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 12 h 25 min
- Average wind
- 7 mph
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| Near North SideIllinois | 1 mi N | 76° | 56° | 3.2 in. |
| West TownIllinois | 2 mi WNW | 76° | 56° | 3.2 in. |
| ChicagoIllinois | 3 mi SSW | 76° | 56° | 3.2 in. |
| Lincoln ParkIllinois | 3 mi NNW | 75° | 55° | 3.2 in. |
| Logan SquareIllinois | 4 mi NW | 76° | 56° | 3.2 in. |
| South LawndaleIllinois | 5 mi SW | 77° | 56° | 3.2 in. |
| New CityIllinois | 5 mi SSW | 76° | 55° | 3.1 in. |
| AvondaleIllinois | 6 mi NW | 76° | 56° | 3.3 in. |