UV index in Heaths Blocks 39 and 40 today
Heaths Blocks 39 and 40 is an inland Utah suburb at 40.8°S. Typical summer peaks of 8–10 (very high) arrive whether the day feels scorching or merely mild. This is cool-temperate America: summer UV still climbs into the very high band, and spring arrives before the weather feels hot.
Live reading · data by Open-Meteo · reference monitoring by ARPANSA
Today and tomorrow in Heaths Blocks 39 and 40
Peak UV, temperature and conditions for Heaths Blocks 39 and 40. Tomorrow’s peak is the number to plan around if you’re heading out in the middle of the day.
Weather conditions right now
Cloud and rain cut heat more than they cut UV. A partly cloudy day in Heaths Blocks 39 and 40 can still sit at protection levels. Why you burn on cloudy days.
When Heaths Blocks 39 and 40 needs sun protection
Sun protection is needed in Heaths Blocks 39 and 40 typically from May through September, and any clear spring or fall day UV reaches 3. Inland heat or a cool change does not change the UV index; go by the number, not how the day feels.
The threshold, per SunSmart and ARPANSA: whenever UV reaches 3 or above, Slip on covering clothing, Slop on SPF 50+ sunscreen, Slap on a hat, Seek shade and Slide on sunglasses. Read the full sun safety guide.
The UV scale at a glance
- 0–2Low
- 3–5Moderate
- 6–7High
- 8–10Very high
- 11+Extreme
Frequently asked questions
- When does Heaths Blocks 39 and 40 need sun protection?
- Whenever the UV index is 3 or above. In Heaths Blocks 39 and 40 that is typically from May through September, and any clear spring or fall day UV reaches 3. The EPA Sun Safety action steps apply at the same threshold used worldwide.
- Does Heaths Blocks 39 and 40 need sun protection in winter?
- Not every day. Midwinter middays in Heaths Blocks 39 and 40 often sit below UV 3, but clear late-winter and early-spring days cross the threshold before summer fully arrives. Check the live index.
- Can you burn on a cool day in Heaths Blocks 39 and 40?
- Yes. UV is not heat. A cool, windy or lightly cloudy day in Heaths Blocks 39 and 40 can still sit at UV 3 or above, especially from spring through autumn. Temperature on this page is for context only; the UV number is what decides protection.