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When the UV index is presented on a daily basis, it represents UV intensity around the sun's highest point in the day, called solar noon, halfway between sunrise and sunset. This typically occurs between 11:30 and 12:30, or between 12:30 and 13:30 in areas where daylight saving time is being observed.
2 UV Index. 5:44PM Sunset. 3 mph F 5 km/h C Wind. 60 ... Associated Press 1 day ago California begins 2025 with solid start to winter snowpack, but more storms are needed.
The warmest day on record for the entire planet was 22 July 2024 when the highest global average temperature was recorded at 17.16 °C (62.89 °F). [20] The previous record was 17.09 °C (62.76 °F) set the day before on 21 July 2024. [20] The month of July 2023 was the hottest month on record globally. [21]
2 UV Index. 4:47PM Sunset. 10 mph F 16 km/h C Wind. 19 ... Associated Press 1 day ago Parts of the UK are flooded by heavy rain as wild weather continues to disrupt New Year's events.
On the positive side, UV exposure enables the synthesis of vitamin D 3, which is essential for bone health [1] and potentially plays a role in inhibiting certain cancers. [ 2 ] [ 3 ] While vitamin D can also be obtained through dietary supplements, [ 4 ] UV exposure offers benefits such as enhanced subdermal nitric oxide production and improved ...
--UV Index. 4:49PM Sunset. 3 mph F 5 km/h C Wind. 20 ... Associated Press 1 day ago California begins 2025 with solid start to winter snowpack, but more storms are needed.
--UV Index. 4:41PM Sunset. 15 mph F 24 km/h C Wind. 24 ... Fox Weather 1 day ago Times Square New Year's Eve ball drop threatened by storms as people flock to celebrate in New York City.
Sunburn effect (as measured by the UV index) is the product of the sunlight spectrum (radiation intensity) and the erythemal action spectrum (skin sensitivity) across the range of UV wavelengths. Sunburn production per milliwatt of radiation intensity is increased by nearly a factor of 100 between the near UVB wavelengths of 315–295 nm.