Monthly weather scores combine temperatures, sunshine, rain, and comfort signals to highlight when Chicagois at its most inviting, and when the weather is least cooperative.
Back to weather detailsOverall score 43.3%
Overall score 17.3%
A simple average of the Heat Seeker, Mild Moderate, and Sun And Dry scores.
The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.
Monthly score trend
This chart shows how the score changes through the year, so the top and omitted months below have context.
Top months to visit
Higher scores mean months that better match this travel style.
1. September
Score 43.3%
2. August
Score 40.7%
3. June
Score 40.3%
Top months to omit
Lower scores mean months where the weather is least aligned with this travel style.
1. January
Score 17.3%
2. March
Score 19.0%
3. April
Score 19.0%
Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.
The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.
Monthly score trend
This chart shows how the score changes through the year, so the top and omitted months below have context.
Top months to visit
Higher scores mean months that better match this travel style.
1. August
Score 50.0%
2. July
Score 47.0%
3. September
Score 43.0%
Top months to omit
Lower scores mean months where the weather is least aligned with this travel style.
1. January
Score 12.0%
2. February
Score 14.0%
3. March
Score 14.0%
Mild Moderate Score is designed for those who prefer comfortable, temperate weather conditions. It favors moderate temperatures and balanced weather patterns.
The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.
Monthly score trend
This chart shows how the score changes through the year, so the top and omitted months below have context.
Top months to visit
Higher scores mean months that better match this travel style.
1. October
Score 55.0%
2. May
Score 53.0%
3. September
Score 36.0%
Top months to omit
Lower scores mean months where the weather is least aligned with this travel style.
1. April
Score 9.0%
2. January
Score 11.0%
3. March
Score 11.0%
Sun And Dry Score maximizes sun exposure and minimizes all forms of precipitation. Temperature is secondary, preferring mild-to-warm conditions.
The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.
Monthly score trend
This chart shows how the score changes through the year, so the top and omitted months below have context.
Top months to visit
Higher scores mean months that better match this travel style.
1. August
Score 53.0%
2. July
Score 51.0%
3. September
Score 51.0%
Top months to omit
Lower scores mean months where the weather is least aligned with this travel style.
1. January
Score 29.0%
2. February
Score 31.0%
3. April
Score 31.0%