Cook County İklim and Average Hava durumu
İklim of Cook County: average temperatures, rainfall and seasons month by month.
İklim in Cook County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Ay | Avg high | Avg low | Yağmurfall | Rating |
|---|---|---|---|---|
| Ocak | -2° | -8° | 73 mm | ★★☆☆☆ |
| Şubat | 4° | -4° | 19 mm | ★★★☆☆ |
| Mart | 11° | 1° | 103 mm | ★★★☆☆ |
| Nisan | 15° | 6° | 113 mm | ★★★☆☆ |
| May | 20° | 11° | 68 mm | ★★★★☆ |
| Haziran | 26° | 18° | 126 mm | ★★★★☆ |
| Temmuz | 28° | 20° | 127 mm | ★★★★☆ |
| Ağustos | 27° | 19° | 116 mm | ★★★★☆ |
| Eylül | 24° | 17° | 74 mm | ★★★★☆ |
| Ekim | 18° | 10° | 79 mm | ★★★★☆ |
| Kasım | 10° | 3° | 68 mm | ★★★☆☆ |
| Aralık | 3° | -3° | 68 mm | ★★☆☆☆ |
İklim type: Kıtaal. Kaynak: Open-Meteo archive (ERA5).
Recent extremes in Cook County
Yüksekest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Cook County compares ve 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 |
Ziyaret için en iyi zaman Cook County
Go in May, Haziran, Ağustos, Eylül and Ekim. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: Ocak, Şubat and Aralık - expect the least comfortable mix of heat, cold or rain.
What this means for Cook County
Today is slightly warmer than average for Ekim. The forecast high of 21°C is 3.5°C above the 18°C typical for this month.
Yağmur 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 Haziran ile Ağustos.
The gap between the warmest and coldest month averages 29°C.
What ile pack, what ile skip
- Pazglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 20°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid Ocak, Şubat and Aralık - historically the least comfortable months here.
Özet
Cook County is a county in Illinois. Cook County is a county in the United States. Nüfusu yaklaşık 5.1 million.
Şu anda sıcaklık 9°C (49°F) in Cook County ve açık gökyüzü. Hissedilen sıcaklık 6°C. Bugün sıcaklık 8°C ile 21°C. Yağış olasılığı 4%. Sightseeing conditions score 8.5/10 - mükemmel — şimdi çıkın.
Ziyaret için en iyi zaman Cook County is May, Haziran, Ağustos, Eylül and Ekim. İklim continental. Ocak, Şubat and Aralık tend ile be the least comfortable months. Temmuz is the warmest month ve average highs near 28°C, while Ocak is the coldest ve 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.
Kısaca. Today is slightly warmer than average for Ekim. The forecast high of 21°C is 3.5°C above the 18°C typical for this month. The best window ile be outside is roughly 3 PM ile 6 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Cook County today at 9.9/10. 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
| Tür | County |
|---|---|
| State | Illinois |
| Ülke | Amerika Birleşik Devletleri |
| Kıta | Kuzey Amerika |
| Koordinatlar | 41°52′41.2″N 87°37′47.3″W (41.8781, -87.6298) |
| Nüfus | 5.100.000 |
| Yerel saat | 8:19 AM (UTC-05:00) |
| Best months | May, Haziran, Ağustos, Eylül and Ekim |
| İklim | Kıtaal |
Hava durumu map for Cook County
Animated model layers. Pick a layer ile load it.
Animated layers by Rüzgâry. 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.
İklim 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 Kuzey Amerika.
What is the weather like in Cook County şu anda?
It is currently 9°C (49°F) ve açık gökyüzü. Nem is 78% and wind is 12 km/h.
When is the best time ile visit Cook County?
May, Haziran, Ağustos, Eylül and Ekim offer the most comfortable conditions in Cook County, which has a continental climate. Ocak, Şubat and Aralık 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 8:19 AM.
How many people live in Cook County?
Cook County has a population of approximately 5.1 million.
What is the nearest airport ile Cook County?
The closest airports are O'Hare International Airport (ORD), 25 km away.
What are the top things ile 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. |
|---|---|
| Tahmin and observations | Open-Meteo (ECMWF and national models). |
| Hava kalitesi and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| İklim averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Hava durumu 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 Ekim 6, 2026 at 8:19 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
