UV Index in Grant City, United States

Last updated: June 2, 2025

Understanding the UV Index in Grant City, United States is vital for protecting yourself from harmful ultraviolet radiation. With peak UV levels reaching 11 during midday hours, awareness of these numbers can significantly aid in sunburn prevention and maintaining overall skin health. Grant City, characterized by its humid continental climate, presents unique UV exposure risks, especially in the summer months when the sun is at its strongest. By staying informed about the UV Index, you can enjoy the outdoors safely while minimizing the potential for skin damage.

Hourly UV Index in Grant City

The UV Index for today shows a dramatic rise as the sun ascends into the sky. Starting at a mild 1 by 07:00, the index gradually builds, reaching 3 by 09:00 and peaking at an intense 11 at 13:00—a level where sun protection is crucial. From this pinnacle, the values start to decline, tapering off to 10 at 14:00 and then gradually decreasing through the afternoon and evening, with values of 6 at 16:00 and sliding down to 1 by 19:00. Plan your outdoor activities accordingly, and remember to protect your skin during those peak hours!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	2	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	10	very high	15 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Grant City

Throughout the year, UV index levels exhibit notable seasonal changes, with the highest risks occurring from April to September. April (UV Index 9) marks the beginning of very high exposure, escalating to an extreme level (UV Index 11) in June, where burn times are as short as 10 minutes. Monthly UV indices frequently remain in the very high category (UV Index 9-10) through July and August before tapering off in September. During these months, residents and visitors should take proactive measures such as wearing sunscreen, protective clothing, and limiting sun exposure, particularly between 10 AM and 4 PM. As exposure decreases in the fall and winter months, with UV Index values dropping to moderate levels (UV Index 3-5), individuals should still practice sun safety, especially on clear days.

Monthly Maximum UV Index for Grant City, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Grant City. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Grant City, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Grant City UV Index with Other United States Cities

The table above highlights how UV exposure in Grant City compares to other major locations across United States. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Grant City's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chicago UVI	3	4	6	8	9	10	10	9	8	6	4	2
Brooklyn UVI	3	5	6	8	10	10	9	9	8	6	4	2
New York City UVI	3	5	6	8	10	10	9	9	8	6	4	2
Grant City	3	5	6	9	10	11	10	9	9	6	4	3
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5