Historical Weather for Chicago, United States

Showing historical weather data for 1 Oct to 31 Oct over the last 5 years (2025-2025).

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Chicago, Illinois, United States (01-10 → 31-10)

Years 2025–2025 · Source: Meteostat

Weather Summary

Automated rules using observed Meteostat data (no AI calls).

Average temperature

14.3°C

Above long-term avg by 0.0°C

Total rainfall

56.3 mm

Across the selected period

Notable conditions

Heatwave days: 0
Frost days: 0
Heavy rain days: 0

Daily temperature vs long-term average

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Recent period Long-term average

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Anomaly vs normal

0.0°C

Warmer than the multi-year average

Record extremes

Record high: 30.5°C · 03 Oct 2025

Record low: 2.5°C · 24 Oct 2025

Precip & wind peaks

Rain: 14.9 mm · 18 Oct 2025

Wind: 15.9 kts · 19 Oct 2025

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Average temperature

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01 Oct→01 Oct

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Time Travel Insight

Typical weather for 2025.

Temperatures were consistent with the long-term average.

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Recommended

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Automate watering and protect plants from frost with moisture + temp alerts.

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Trim heating and cooling costs when temps swing outside the norm.

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2025

31 days

01 Oct → 31 Oct

Temperature

High: 9.6°C → 30.5°C

Low: 2.5°C → 18.7°C

Precipitation

Rain: 56.3 mm

Snow: 0.0 cm

Wind

9.2 kts avg · 15.9 kts peak

Accessible data table

Daily values for the first series (showing up to 30 rows)

Day	High (°C)	Low (°C)	Rain (mm)	Wind (kts)
01 Oct	22.4°C	16.8°C	0.0 mm	9.1 kts
02 Oct	25.4°C	14.9°C	0.0 mm	7.0 kts
03 Oct	30.5°C	17.4°C	0.0 mm	6.3 kts
04 Oct	29.7°C	18.7°C	0.0 mm	8.4 kts
05 Oct	28.9°C	17.8°C	0.0 mm	10.2 kts
06 Oct	28.3°C	18.6°C	6.3 mm	9.5 kts
07 Oct	19.1°C	13.3°C	14.4 mm	10.0 kts
08 Oct	16.2°C	12.4°C	0.1 mm	8.0 kts
09 Oct	15.7°C	8.9°C	0.0 mm	5.5 kts
10 Oct	19.6°C	8.9°C	0.0 mm	7.7 kts
11 Oct	17.2°C	13.6°C	0.1 mm	8.5 kts
12 Oct	18.0°C	10.4°C	0.0 mm	7.5 kts
13 Oct	19.2°C	12.2°C	0.0 mm	5.1 kts
14 Oct	19.3°C	14.7°C	0.0 mm	8.3 kts
15 Oct	15.4°C	13.4°C	4.2 mm	8.0 kts
16 Oct	17.9°C	12.7°C	0.0 mm	6.8 kts
17 Oct	23.0°C	12.8°C	0.0 mm	9.9 kts
18 Oct	23.4°C	16.3°C	14.9 mm	10.2 kts
19 Oct	15.4°C	9.5°C	12.8 mm	15.9 kts
20 Oct	17.3°C	5.6°C	1.4 mm	11.6 kts
21 Oct	12.4°C	8.0°C	1.2 mm	15.5 kts
22 Oct	9.9°C	7.2°C	0.1 mm	14.4 kts
23 Oct	10.6°C	4.3°C	0.0 mm	8.8 kts
24 Oct	9.6°C	2.5°C	0.0 mm	4.9 kts
25 Oct	11.4°C	3.2°C	0.0 mm	5.4 kts
26 Oct	12.8°C	8.2°C	0.0 mm	9.0 kts
27 Oct	12.6°C	7.8°C	0.0 mm	10.5 kts
28 Oct	13.2°C	8.3°C	0.0 mm	11.7 kts
29 Oct	11.8°C	8.9°C	0.0 mm	13.8 kts
30 Oct	11.4°C	6.5°C	0.0 mm	9.2 kts

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