Peak UV index by city
| City | Population | Peak UV | Exposure | UV 3+ hours |
|---|---|---|---|---|
| Las Vegas | 679,817 | 4 | Moderate | 10 AM–2 PM |
| Henderson | 353,289 | 4 | Moderate | 10 AM–2 PM |
| North Las Vegas | 296,653 | 4 | Moderate | 10 AM–2 PM |
| Reno | 283,621 | 4 | Moderate | 11 AM–2 PM |
| Sparks | 111,902 | 4 | Moderate | 11 AM–2 PM |
| Carson City | 58,571 | 4 | Moderate | 11 AM–2 PM |
| Fernley | 26,214 | 3 | Moderate | 11 AM–2 PM |
UV 3+ hours show the window from the first forecast hour at 3 or above to the end of the last. The EPA recommends sun protection at UV 3 and above. Open a city for its current-hour forecast and hourly chart. Forecast sources and limitations.
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