UV Index in Lander, United States

Last updated: May 3, 2025

In Lander, Wyoming, being aware of the UV Index is crucial for safeguarding your skin against harmful solar radiation. Understanding UV levels is not just about preventing sunburn; it's vital for long-term skin health and reducing the risk of skin cancer. With a semi-arid climate typical of the BSk zone, Lander experiences significant UV exposure, particularly during the peak midday hours when the index can reach a maximum of 10. Staying informed about UV levels enables residents and visitors alike to take proactive measures to enjoy the sun safely.

Hourly UV Index in Lander

Today's UV Index presents an intriguing curve, starting the day with a mellow maximum of 1 at 07:00. As the sun climbs higher, things heat up quickly—by 10:00, the index reaches 6, and by 12:00, it peaks at an intense 10. This level remains steady until 14:00, urging sun enthusiasts to take precautions. As the afternoon fades, the UV Index gracefully tapers off, dropping to 4 by 17:00, and finally sinking back to a gentle 1 by 19:00. With mid-day UV levels soaring, it’s crucial to stay protected 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	4	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	10	very high	15 min
14:00	10	very high	15 min
15:00	8	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 Lander

Throughout the year, the UV Index exhibits notable seasonal changes, significantly impacting sun exposure and skin health. High-risk months for UV exposure are typically from April to August, where UV levels reach very high and extreme categories, with an alarming peak of 12 in June and July, resulting in a rapid burn time of just 10 minutes for unprotected skin. In contrast, during the winter months of January, February, November, and December, the UV Index remains lower, within the moderate range of 3 to 5 and offering 30 minutes for burn time. To safeguard against harmful UV rays, it's crucial for both visitors and residents to apply sunscreen, wear protective clothing, and seek shade, particularly during peak summer months. Awareness and proactive measures can help prevent skin damage and promote sun safety year-round.

Monthly Maximum UV Index for Lander, United States

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

The table above highlights how UV exposure in Lander 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.

Lander'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
Lander	3	5	7	10	10	12	12	11	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