UV Index in Monticello, United States

Last updated: June 2, 2025

In Monticello, United States, awareness of the UV Index is crucial for safeguarding your skin against harmful sun exposure. Understanding the UV levels throughout the day helps in effective sunburn prevention and promotes long-term skin health. With a BSk climate characterized by significant sunshine and elevation, Monticello's UV exposure risks peak notably around midday, where readings can soar to 12. By staying informed about the UV Index, residents can enjoy the outdoors while taking essential precautions to protect themselves from the sun’s intense rays.

Hourly UV Index in Monticello

The UV Index rises sharply as the day unfolds, starting gently at 1 by 7:00 AM. As the sun climbs higher, it reaches 2 by 8:00 AM and then jumps to 4 by 9:00 AM. The intensity peaks around midday, hitting a striking 11 at 12:00 PM, followed closely by a maximum of 12 from 1:00 PM to 2:00 PM. In the afternoon, the index begins to decline, dropping to 10 by 3:00 PM and further down to 5 by 5:00 PM. As daylight wanes, the value lowers to 1 by 7:00 PM, indicating a rapid decrease in UV exposure. This cyclical pattern highlights the importance of sun protection during peak hours, especially between 11:00 AM and 2:00 PM when the UV Index is highest.

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.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:004moderate30 min
10:006high25 min
11:009very high15 min
12:0011extreme10 min
13:0012extreme10 min
14:0012extreme10 min
15:0010very high15 min
16:007high25 min
17:005moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Monticello

Throughout the year, the UV Index experiences significant fluctuations, with the highest risk months occurring from March to August. During this period, the UV index peaks at 12, indicating an extreme exposure category, which necessitates vigilant sun protection measures as the burn time drops to just 10 minutes. In April and May, the index remains at a very high level of 10 and 12, respectively, with equally limited burn times. September sees a slight decrease to a UV Index of 10, transitioning to high in October at 7 and gradually tapering down to moderate levels by December with an index of 3. To ensure safety, residents and visitors should prioritize sun protection strategies, especially during the high-risk months of March through August. This includes wearing sunscreen, sunglasses, and protective clothing while seeking shade during peak sun hours.

Monthly Maximum UV Index for Monticello, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Monticello. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec478101212121110753
Data source: Statistical UV Index data for Monticello, 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 Monticello UV Index with Other United States Cities

The table above highlights how UV exposure in Monticello 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.
Monticello's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Monticello478101212121110753
Houston UVI589111112121110975