Cook County 気候 and Average 天気
気候 of Cook County: average temperatures, rainfall and seasons month by month.
気候 in Cook County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| 月 | Avg high | Avg low | 雨fall | Rating |
|---|---|---|---|---|
| 1月 | -2° | -8° | 73 mm | ★★☆☆☆ |
| 2月 | 4° | -4° | 19 mm | ★★★☆☆ |
| 3月 | 11° | 1° | 103 mm | ★★★☆☆ |
| 4月 | 15° | 6° | 113 mm | ★★★☆☆ |
| 5月 | 20° | 11° | 68 mm | ★★★★☆ |
| 6月 | 26° | 18° | 126 mm | ★★★★☆ |
| 7月 | 28° | 20° | 127 mm | ★★★★☆ |
| 8月 | 27° | 19° | 116 mm | ★★★★☆ |
| 9月 | 24° | 17° | 74 mm | ★★★★☆ |
| 10月 | 18° | 10° | 79 mm | ★★★★☆ |
| 11月 | 10° | 3° | 68 mm | ★★★☆☆ |
| 12月 | 3° | -3° | 68 mm | ★★☆☆☆ |
気候 type: 大陸al. 出典： Open-Meteo archive (ERA5).
Recent extremes in Cook County
高いest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Cook County compares、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 |
訪問に最適な時期 Cook County
Go in 5月, 6月, 8月, 9月 and 10月. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: 1月, 2月 and 12月 - expect the least comfortable mix of heat, cold or rain.
What this means for Cook County
Today is about average for 10月. The forecast high of 17°C is in line、the 18°C typical for this month.
雨 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 6月から8月.
The gap between the warmest and coldest month averages 29°C.
Whatからpack, whatからskip
- Layers - the daily swing is 16°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid 1月, 2月 and 12月 - historically the least comfortable months here.
概要
Cook County is a county in Illinois. Cook County is a county in the United States. 人口は約5.1 million.
現在の気温は9°C (48°F) in Cook County、晴れ時々曇り. 体感温度は8°C. 今日の気温は7°Cから17°C. 降水確率は0%. Sightseeing conditions score 8.8/10 - 絶好 — 今すぐ出かけられます.
訪問に最適な時期はCook County is 5月, 6月, 8月, 9月 and 10月. 気候はcontinental. 1月, 2月 and 12月 tendからbe the least comfortable months. 7月 is the warmest month、average highs near 28°C, while 1月 is the coldest、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.
簡単に言うと。 Today is about average for 10月. The forecast high of 17°C is in line、the 18°C typical for this month. The best windowからbe outside is roughly 1 PMから4 PM, when temperature, rain chance and wind line up best. running 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
天気 map for Cook County
Animated model layers. Pick a layerからload it.
Animated layers by 風y. 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.
気候 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 北アメリカ.
What is the weather like in Cook County現在?
It is currently 9°C (48°F)、晴れ時々曇り. 湿度 is 89% and wind is 4 km/h.
When is the best timeからvisit Cook County?
5月, 6月, 8月, 9月 and 10月 offer the most comfortable conditions in Cook County, which has a continental climate. 1月, 2月 and 12月 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 4:12 AM.
How many people live in Cook County?
Cook County has a population of approximately 5.1 million.
What is the nearest airportからCook County?
The closest airports are O'Hare International Airport (ORD), 25 km away.
What are the top thingsから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. |
|---|---|
| 予報 and observations | Open-Meteo (ECMWF and national models). |
| 大気質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 気候 averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National 天気 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 10月 23, 2026 at 4:12 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
