UV Index in Elk River, United States

Latitude45.30°N
Elevation273m+3% UV
ClimateCool Temperate
UV Patternnorthern temperate

Mild summers and cold winters. UV sufficient for vitamin D only in late spring through early fall.

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Typical UV by Season

Estimated peak UV values based on latitude (Northern Hemisphere)

Spring

Mar - May

~4Moderate

Summer

Jun - Aug

~7High

Fall

Sep - Nov

~3Moderate

Winter

Dec - Feb

~1Low

Calculate Your Vitamin D

Get a personalized estimate of how much vitamin D you can produce in Elk River based on your skin type and sun exposure.

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Understanding UV in Elk River

The UV index measures ultraviolet radiation strength. Higher values mean faster vitamin D production but also greater sunburn risk. UV varies by:

  • Season - Sun angle changes throughout the year
  • Time of day - Peak UV is between 10am and 4pm
  • Cloud cover - Clouds reduce UV by 25-50%
  • Altitude - UV increases ~10% per 1000m elevation
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