Chicago UV index in October
Typical ultraviolet levels for Chicago during October, from the past year of data.
Moderate
Chicago
Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
4.2
UV Index
October average UTC
Low
Moderate
High
Very High
Extreme
October UV
4.2309
Risk level
Moderate
Yearly peak
9.2667
Peak month
July
Chicago UV index — monthly trend
Average UV index by month over the past year, with October highlighted.
Visiting Chicago in October?
In October, Chicago's typical UV index is about 4.2309 — a moderate risk level. Moderate UV. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
Across the year, Chicago sees the strongest UV in Summer, peaking around 9.2667 in July. Plan sun protection accordingly.
