UV Index in Fort Defiance, United States
Last updated: February 1, 2025
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.| | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 |
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| UVI | 1 | 1 | 3 | 5 | 7 | 8 | 8 | 6 | 4 | 2 | 1 | 0 | 0 |
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| Exposure | low | moderate | high | very high | high | moderate | low |
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| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min |
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UV Index throughout the year in Fort Defiance
UV Index (UVI) in Fort Defiance. Generated using Copernicus Atmosphere Monitoring Service information. Data for the period from January 2022 to January 2023.| | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 |
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| January | 0 | 1 | 1 | 3 | 4 | 5 | 5 | 4 | 2 | 1 | 1 | 0 | 0 |
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| February | 1 | 1 | 3 | 5 | 7 | 8 | 8 | 6 | 4 | 2 | 1 | 0 | 0 |
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| March | 1 | 1 | 3 | 6 | 8 | 9 | 9 | 9 | 7 | 5 | 3 | 1 | 1 |
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| April | 1 | 1 | 3 | 5 | 8 | 10 | 11 | 11 | 9 | 6 | 3 | 2 | 1 |
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| May | 1 | 2 | 4 | 6 | 9 | 11 | 12 | 12 | 10 | 7 | 4 | 2 | 1 |
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| June | 1 | 2 | 4 | 7 | 9 | 12 | 13 | 12 | 10 | 8 | 5 | 2 | 1 |
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| July | 1 | 2 | 4 | 6 | 9 | 11 | 13 | 12 | 10 | 7 | 5 | 2 | 1 |
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| August | 1 | 1 | 3 | 5 | 8 | 11 | 12 | 11 | 10 | 7 | 4 | 2 | 1 |
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| September | 1 | 1 | 2 | 5 | 7 | 10 | 11 | 10 | 8 | 6 | 3 | 1 | 1 |
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| October | 0 | 1 | 2 | 4 | 6 | 7 | 8 | 7 | 6 | 3 | 2 | 1 | 0 |
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| November | 1 | 1 | 2 | 4 | 5 | 6 | 6 | 5 | 4 | 2 | 1 | 1 | 0 |
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| December | 0 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 2 | 1 | 1 | 0 | 0 |
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Compare Fort Defiance UV Index to other United States cities
Fort Defiance'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 |
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| Chicago | 3 | 4 | 6 | 8 | 9 | 10 | 10 | 9 | 8 | 6 | 4 | 2 |
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| Brooklyn | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
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| New York City | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
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| Los Angeles | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
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| Houston | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |
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| Fort Defiance | 5 | 8 | 9 | 11 | 12 | 13 | 13 | 12 | 11 | 8 | 6 | 4 |
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Compare Fort Defiance's UV Index to other cities in the world
Fort Defiance's solar exposure compared to other cities in the world. Generated using Copernicus Atmosphere Monitoring Service information.| | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| Oslo | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
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| Berlin | 1 | 2 | 4 | 5 | 7 | 8 | 7 | 7 | 5 | 3 | 2 | 1 |
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| London | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
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| Toronto | 2 | 4 | 5 | 8 | 9 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |
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| New York City | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
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| Athens | 3 | 4 | 6 | 8 | 10 | 10 | 10 | 10 | 8 | 7 | 4 | 3 |
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| Tokyo | 3 | 5 | 8 | 9 | 11 | 11 | 11 | 11 | 10 | 7 | 5 | 4 |
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| Los Angeles | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
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| Shanghai | 5 | 6 | 8 | 10 | 10 | 11 | 12 | 11 | 11 | 8 | 6 | 4 |
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| Auckland | 14 | 14 | 10 | 7 | 4 | 3 | 3 | 5 | 7 | 10 | 11 | 13 |
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| Dubai | 6 | 7 | 11 | 11 | 12 | 11 | 10 | 11 | 10 | 8 | 6 | 5 |
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| Sydney | 14 | 13 | 11 | 8 | 5 | 3 | 4 | 6 | 8 | 10 | 12 | 14 |
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| Fort Defiance | 5 | 8 | 9 | 11 | 12 | 13 | 13 | 12 | 11 | 8 | 6 | 4 |
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| Miami | 6 | 9 | 10 | 12 | 12 | 13 | 12 | 12 | 11 | 10 | 8 | 6 |
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| Mexico City | 10 | 12 | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 12 | 10 | 8 |
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| Jakarta | 14 | 16 | 16 | 14 | 11 | 10 | 10 | 11 | 13 | 15 | 14 | 13 |
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