UV Index in Colstrip, United States

Last updated: June 2, 2025

In Colstrip, United States, awareness of the UV Index is crucial for protecting your skin from harmful solar radiation. Understanding UV levels is key to preventing sunburns and promoting long-term skin health, especially as the UV Index in our region can peak at a striking 10 during midday hours. With Colstrip's semi-arid BSk climate, residents and visitors face unique challenges related to sun exposure, making it essential to monitor UV intensity regularly. By staying informed about the UV Index, you can enjoy the outdoors safely while minimizing the risks associated with excessive sun exposure.

Hourly UV Index in Colstrip

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 Colstrip

The UV Index experiences significant seasonal fluctuations, peaking during the summer months. From January to March, the UV Index remains low to moderate, with exposure risks manageable. However, beginning in April, the UV Index escalates to a very high level, reaching its peak of 10 in June and July. These months represent high-risk periods for sunburn, with a critical burn time of just 15 minutes. In August and September, the Index remains high at 9 and 8, respectively, so caution is still essential. As October arrives, the risk decreases to moderate levels again, before receding to low in December. Visitors and residents are advised to take precautionary measures during the high-risk months of April through September, such as wearing protective clothing, seeking shade, and using sunscreen to minimize UV exposure.

Monthly Maximum UV Index for Colstrip, United States

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

The table above highlights how UV exposure in Colstrip 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.

Colstrip'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
Colstrip	2	4	5	9	9	10	10	9	8	5	3	2
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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5