Cook County Klimat and Average Pogoda
Klimat of Cook County: average temperatures, rainfall and seasons month by month.
Klimat in Cook County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Miesiąc | Avg high | Avg low | Deszczfall | Rating |
|---|---|---|---|---|
| styczeń | -2° | -8° | 73 mm | ★★☆☆☆ |
| luty | 4° | -4° | 19 mm | ★★★☆☆ |
| marzec | 11° | 1° | 103 mm | ★★★☆☆ |
| kwiecień | 15° | 6° | 113 mm | ★★★☆☆ |
| maj | 20° | 11° | 68 mm | ★★★★☆ |
| czerwiec | 26° | 18° | 126 mm | ★★★★☆ |
| lipiec | 28° | 20° | 127 mm | ★★★★☆ |
| sierpień | 27° | 19° | 116 mm | ★★★★☆ |
| wrzesień | 24° | 17° | 74 mm | ★★★★☆ |
| październik | 18° | 10° | 79 mm | ★★★★☆ |
| listopad | 10° | 3° | 68 mm | ★★★☆☆ |
| grudzień | 3° | -3° | 68 mm | ★★☆☆☆ |
Klimat type: Kontynental. Źródło: Open-Meteo archive (ERA5).
Recent extremes in Cook County
Wysokiest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Cook County compares przy 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 |
Najlepszy czas na wizytę Cook County
Go in maj, czerwiec, sierpień, wrzesień and październik. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: styczeń, luty and grudzień - expect the least comfortable mix of heat, cold or rain.
What this means for Cook County
Today is about average for październik. The forecast high of 17°C is in line przy the 18°C typical for this month.
Deszcz 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 czerwiec do sierpień.
The gap between the warmest and coldest month averages 29°C.
What do pack, what do skip
- Layers - the daily swing is 14°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid styczeń, luty and grudzień - historically the least comfortable months here.
Podsumowanie
Cook County is a county in Illinois. Cook County is a county in the United States. Liczba ludności wynosi około 5.1 million.
Obecnie temperatura wynosi 7°C (44°F) in Cook County przy pochmurno. Odczuwalna temperatura do 5°C. Dziś temperatura wynosi od 7°C do 17°C. Prawdopodobieństwo opadów wynosi 0%. Sightseeing conditions score 8.4/10 - dobre warunki.
Najlepszy czas na wizytę w Cook County is maj, czerwiec, sierpień, wrzesień and październik. Klimat jest continental. styczeń, luty and grudzień tend do be the least comfortable months. lipiec is the warmest month przy average highs near 28°C, while styczeń is the coldest przy lows near -8°C.
The closest major airport is O'Hare International Airport (ORD), about 25 km away. Nearby highlights include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
Mówiąc prosto. Today is about average for październik. The forecast high of 17°C is in line przy the 18°C typical for this month. The best window do be outside is roughly 2 PM do 5 PM, when temperature, rain chance and wind line up best. running 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
| Typ | County |
|---|---|
| State | Illinois |
| Kraj | Stany Zjednoczone |
| Kontynent | Ameryka Północna |
| Współrzędne | 41°52′41.2″N 87°37′47.3″W (41.8781, -87.6298) |
| Ludność | 5.100.000 |
| Czas lokalny | 3:58 PM (UTC-05:00) |
| Best months | maj, czerwiec, sierpień, wrzesień and październik |
| Klimat | Kontynental |
Pogoda map for Cook County
Animated model layers. Pick a layer do load it.
Animated layers by Wiatry. 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.
Klimat 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 Ameryka Północna.
What is the weather like in Cook County teraz?
It is currently 7°C (44°F) przy pochmurno. Wilgotność is 100% and wind is 5 km/h.
When is the best time do visit Cook County?
maj, czerwiec, sierpień, wrzesień and październik offer the most comfortable conditions in Cook County, which has a continental climate. styczeń, luty and grudzień are usually the hardest months for outdoor plans.
What time zone is Cook County in?
Cook County observes America/Chicago (UTC-05:00). The local time is 3:58 PM.
How many people live in Cook County?
Cook County has a population of approximately 5.1 million.
What is the nearest airport do Cook County?
The closest airports are O'Hare International Airport (ORD), 25 km away.
What are the top things do 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. |
|---|---|
| Prognoza and observations | Open-Meteo (ECMWF and national models). |
| Jakość powietrza and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Pogoda 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 październik 23, 2026 at 3:58 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
