Chicago in July
In July, Chicago has 94.2 mm (3.71 in) of rain, a daily high of 29.2 °C (84.6 °F) and a daily low of 19.1 °C (66.4 °F), as 1991-2020 means; figures in brackets are converted.
Last updated : what the month is like; shorter source notes.
Best time to visit Chicago: July misses our rule: days are 1.2 °C over our 28 °C. Expect days that shorten by 44 min.
What July is like in Chicago
- Choirs and soloists sing out at the free Chicago Gospel Music Festival in Millennium Park in late July. Source: Choose Chicago (official tourism site), checked .
- Each evening of SummerDance at the Spirit of Music Garden in Grant Park starts with a dance lesson. Then a live band plays. It runs from mid-July. Source: Choose Chicago (official tourism site), checked .
- Purple and yellow coneflowers bloom in summer on an old patch of prairie in Marquette Park. Wild bergamot grows there too. Source: Choose Chicago (official tourism site), checked .
Key figures
Weather in July, 1991-2020 means
- Daily high
- 29.2 °C (84.6 °F)
- Daily low
- 19.1 °C (66.4 °F)
- Rain
- 94.2 mm (3.71 in) in the month
- Sunshine
- no data
U.S. Climate Normals 1991-2020, NOAA. Checked .
Measured at Chicago O'Hare International Airport, 28 km north-west of the city centre point.
How we define and convert these figures
Notes. Daily high and low: changed: source gives °F; converted to °C, rounded to 0.1. Rain: changed: source gives inches; converted to mm (x 25.4), rounded to 0.1. Sunshine: the NOAA U.S. monthly normals have no sunshine measure.
Daylight on 15 July 2026
- Sunrise
- 05:29 local time
- Sunset
- 20:24 local time
- Day length
- 14 h 55 min
Day length 1-31 July: 15 h 10 min to 14 h 26 min, -44 min.
Source: NOAA Solar Calculator equations, checked .
Month by month
Each month: daily high in °C, then rain in mm, 1991-2020 means.
NOAA U.S. Climate Normals 1991-2020, as above, checked .
This month against the year
| Measure | July | Rank |
|---|---|---|
| Daily high | 29.2 °C | warmest |
| Daily low | 19.1 °C | warmest |
| Rain | 94.2 mm | 5th wettest |
| Sunshine | no data | no data |
| Day length | 14 h 55 min | 2nd longest |
Equal values share a rank. How we rank months
NOAA U.S. Climate Normals 1991-2020, as above, checked .
Day length: NOAA solar equations, checked .
Public holidays this month
| Date | Holiday |
|---|---|
| Friday | Independence Day (Federal holiday, observed on the Friday before) opm.gov |
| Date | Holiday |
|---|---|
| Monday | Independence Day (Federal holiday, observed on the Monday after) opm.gov |
Typed from the official list and re-checked, .
Source: Official public holiday list (cms.illinois.gov), checked .
Same month in 20 cities
Chicago is warmer than 10 of our 20 cities in July by mean daily high. How we rank cities
Closest high and low in July: Rome (1.0 °C apart), Los Angeles (1.2, equal), New York (1.2, equal).
| City | Gap from Chicago, °C | High, °C | Low, °C | Rain, mm | Sunshine, hours |
|---|---|---|---|---|---|
| Chicago (this page) | — | 29.2 | 19.1 | 94.2 | no data |
| Rome (closest) | 1.0 | 31.0 | 19.3 | no data | no data |
| Los Angeles (closest) | 1.2 | 27.8 | 18.2 | 0.5 | no data |
| New York (closest) | 1.2 | 29.4 | 21.2 | 116.8 | no data |
| Barcelona | 1.4 | 29.0 | 21.7 | 27.2 | 279.7 |
| Tokyo | 2.0 | 29.9 | 22.4 | 156.2 | 151.4 |
| Madrid | 2.3 | 33.3 | 19.5 | 9.2 | no data |
| Vienna | 3.0 | 26.4 | 15.9 | 77.7 | 273.6 |
| Paris | 3.2 | 25.7 | 16.2 | 59.4 | 222.0 |
| Hiroshima | 3.4 | 30.9 | 24.1 | 279.8 | 173.4 |
| Seville | 3.9 | 35.7 | 20.4 | 0.6 | 388.1 |
| Berlin | 4.0 | 25.2 | 15.1 | 71.7 | 236.6 |
| Osaka | 4.1 | 31.8 | 24.6 | 174.4 | 184.0 |
| Prague | 4.2 | 25.7 | 14.2 | 74.9 | 240.9 |
| Singapore | 4.3 | 31.4 | 25.4 | 146.6 | no data |
| Munich | 4.4 | 24.9 | 14.7 | 118.9 | 241.4 |
| London | 5.0 | 23.6 | 14.7 | 43.1 | no data |
| Hong Kong | 5.1 | 31.6 | 26.9 | 385.8 | 197.3 |
| Amsterdam | 6.2 | 22.5 | 13.5 | 82.3 | 225.4 |
| Buenos Aires | 12.7 | 15.5 | 7.5 | 74.4 | 142.3 |
Sources (1991-2020): WMO climate normals and NOAA U.S. Climate Normals, checked , ; Hong Kong: our 1991-2020 mean of the Hong Kong Observatory daily climate series on DATA.GOV.HK; Singapore: our 1991-2020 mean of the National Environment Agency monthly climate series on data.gov.sg; both checked . Each city's page names its station. All sources in full on Methodology.
Hong Kong figures: The Government of the Hong Kong Special Administrative Region and the Hong Kong Observatory own the intellectual property rights in the data; attribution to them and DATA.GOV.HK. Licence: Terms and Conditions of Use of DATA.GOV.HK, version 1.2.
Singapore figures: Contains information from the National Environment Agency on data.gov.sg, made available under the terms of the Singapore Open Data Licence version 1.0 (https://data.gov.sg/open-data-licence). The Agency does not endorse our means.
Sources
- Attribution: Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). Station files named in each record. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed on the check date shown. Licence: No licence stated; citation requested. Checked .
- NOAA Solar Calculator equations, computed locally, NOAA Global Monitoring Laboratory (method); City by Month (computation). Attribution: Computed with the NOAA Solar Calculator method (no NOAA endorsement implied). Licence: Method, not data. Checked .
Official sources
Cite this page: City by Month. "Chicago in July: weather, daylight, holidays". https://citybymonth.com/cities/united-states/chicago/july/. Last updated 5 November 2026.