Peak UV index by city
| City | Population | Peak UV | Exposure | UV 3+ hours |
|---|---|---|---|---|
| Baltimore | 569,997 | 3 | Moderate | 11 AM–2 PM |
| Frederick | 92,059 | 3 | Moderate | 11 AM–2 PM |
| Gaithersburg | 71,113 | 3 | Moderate | 11 AM–2 PM |
| Rockville | 67,563 | 3 | Moderate | 11 AM–2 PM |
| Bowie | 58,383 | 3 | Moderate | 11 AM–2 PM |
| Hagerstown | 44,228 | 3 | Moderate | 11 AM–2 PM |
| Annapolis | 40,634 | 3 | Moderate | 11 AM–2 PM |
| College Park | 35,418 | 3 | Moderate | 11 AM–2 PM |
| Salisbury | 33,845 | 3 | Moderate | 11 AM–2 PM |
| Laurel | 30,254 | 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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