Cook County Clima and Average Tiempo
Clima of Cook County: average temperatures, rainfall and seasons month by month.
Clima in Cook County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mes | Máx. media | Mín. media | Precipitaciones | Valoración |
|---|---|---|---|---|
| enero | -2° | -8° | 73 mm | ★★☆☆☆ |
| febrero | 4° | -4° | 19 mm | ★★★☆☆ |
| marzo | 11° | 1° | 103 mm | ★★★☆☆ |
| abril | 15° | 6° | 113 mm | ★★★☆☆ |
| may | 20° | 11° | 68 mm | ★★★★☆ |
| junio | 26° | 18° | 126 mm | ★★★★☆ |
| julio | 28° | 20° | 127 mm | ★★★★☆ |
| agosto | 27° | 19° | 116 mm | ★★★★☆ |
| septiembre | 24° | 17° | 74 mm | ★★★★☆ |
| octubre | 18° | 10° | 79 mm | ★★★★☆ |
| noviembre | 10° | 3° | 68 mm | ★★★☆☆ |
| diciembre | 3° | -3° | 68 mm | ★★☆☆☆ |
Clima type: Continenteal. Fuente: Open-Meteo archive (ERA5).
Recent extremes in Cook County
Altoest and lowest readings observed in the last 3 years of reanalysis data – not all-time records.
How Cook County compares con nearby places
Annual averages, and the difference against Cook County.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Area Code 312 | 0 km | 11°C | about the same | 1034 mm |
| Chicago | 0 km | 11°C | about the same | 1034 mm |
| The Loop | 1 km | 11°C | about the same | 1034 mm |
| ZIP Code 60601 | 1 km | 11°C | about the same | 1034 mm |
| Wicker Park | 5 km | 11°C | about the same | 996 mm |
Mejor época para visitar Cook County
Go in may, junio, agosto, septiembre and octubre. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: enero, febrero and diciembre – expect the least comfortable mix of heat, cold or rain.
What this means for Cook County
Today is about average for octubre. The forecast high of 19°C is in line con the 18°C typical for this month.
Lluvia is very unlikely today – plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in junio a agosto.
The gap between the warmest and coldest month averages 29°C.
What a pack, what a skip
- Layers – the daily swing is 16°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid enero, febrero and diciembre – historically the least comfortable months here.
Resumen
Cook County is a county in Illinois. Cook County is a county in the United States. Tiene una población de aproximadamente 5.1 million.
Ahora mismo hay 13°C (56°F) in Cook County con despejado. La sensación térmica es de 12°C. Hoy las temperaturas van de 7°C a 19°C. La probabilidad de precipitación es del 0%. Las condiciones para hacer turismo obtienen 9.3/10 – excelente — puedes salir ahora.
La mejor época para visitar Cook County is may, junio, agosto, septiembre and octubre. El clima es continental. enero, febrero and diciembre suelen ser los meses menos cómodos. julio es el mes más cálido, con máximas medias cercanas a 28°C, mientras enero es el mes más frío, con mínimas cercanas a -8°C.
El aeropuerto principal más cercano es O'Hare International Airport (ORD), about 25 km away. Entre los lugares destacados cercanos se encuentran Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
En términos sencillos. Today is about average for octubre. The forecast high of 19°C is in line con the 18°C typical for this month. The best window a be outside is roughly 1 PM a 4 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Cook County today at 9.8/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Cook County
| Tipo | County |
|---|---|
| State | Illinois |
| País | Estados Unidos |
| Continente | América del Norte |
| Coordenadas | 41°52′41.2″N 87°37′47.3″W (41.8781, -87.6298) |
| Población | 5.100.000 |
| Hora local | 5:04 PM (UTC-05:00) |
| Mejores meses | may, junio, agosto, septiembre and octubre |
| Clima | Continenteal |
Tiempo map for Cook County
Animated model layers. Pick a layer a load it.
Animated layers by Vientoy. For pin-level detail and nearby places, see the interactive map below.
Explore Cook County
Every topic we hold for this place, and the same topic for the places around it.
Clima for related places
Frequently asked questions
Where is Cook County?
Cook County is a county in Illinois. Its coordinates are 41.8781, -87.6298. It lies in América del Norte.
What is the weather like in Cook County ahora mismo?
It is currently 13°C (56°F) con despejado. Humedad is 79% and wind is 11 km/h.
When is the best time a visit Cook County?
may, junio, agosto, septiembre and octubre offer the most comfortable conditions in Cook County, which has a continental climate. enero, febrero and diciembre are usually the hardest months for outdoor plans.
What time zone is Cook County in?
Cook County observes America/Chicago (UTC-05:00). The hora local is 5:04 PM.
How many people live in Cook County?
Cook County has a population of approximately 5.1 million.
What is the nearest airport a Cook County?
The closest airports are O'Hare International Airport (ORD), 25 km away.
What are the top things a do in Cook County?
Popular options include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) – coordinates, hierarchy and facts. |
|---|---|
| Pronóstico and observations | Open-Meteo (ECMWF and national models). |
| Calidad del aire and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Clima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Tiempo Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing – the block is simply not shown. |
Last updated octubre 24, 2026 at 5:04 PM hora local. Live blocks refresh every 15 minutes; climate averages monthly.
