UV Index in Calhan, United States

Last updated: July 2, 2025

Understanding the UV Index in Calhan, United States is essential for safeguarding your skin against harmful ultraviolet rays. With peak UV levels soaring to 12 during midday hours, awareness of these fluctuations can help prevent painful sunburn and long-term skin damage. Calhan's semi-arid climate (BSk) often means plenty of sunny days, increasing the risk of UV exposure, especially between 10 AM and 4 PM. Stay informed about the UV Index to enjoy the outdoors safely and maintain your skin health!

Hourly UV Index in Calhan

At sunrise, the UV Index begins its steady climb, starting at a safe 1 at 07:00. As the morning progresses, it escalates to 2 by 08:00 and reaches a pleasant 4 by 09:00. However, the real intensity hits between 10:00 and 13:00, with the UV Index peaking at a scorching 12 at 12:00, indicating a high risk of harm from unprotected sun exposure. As the afternoon unfolds, levels gradually descend, hitting 9 at 15:00 before tapering off to 4 by 17:00. By the evening hours, the index returns to a mild 1 by 19:00, reminding us of the importance of sunscreen amidst the sun's powerful midday rays.

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	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 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 Calhan

Throughout the year, seasonal UV changes exhibit a significant increase in intensity, especially during the spring and summer months. High-risk months include March through August, when the UV Index reaches extreme levels of 11-12, resulting in a burn time of just 10 minutes. In particular, the peak values occur in April to July, making these months critical for sun safety. Visitors and residents are advised to take precautions during these high-risk periods by wearing sunscreen, protective clothing, and seeking shade to minimize prolonged exposure. Moderate levels in January, February, November, and December still require some caution, especially during peak sunlight hours. Always be vigilant about UV exposure to protect your skin year-round.

Monthly Maximum UV Index for Calhan, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Calhan. 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 Calhan, 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 Calhan UV Index with Other United States Cities

The table above highlights how UV exposure in Calhan 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.

Calhan'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
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Calhan	4	5	8	11	12	12	12	11	10	7	5	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5