UV index today  UV Index

St. Johnsbury UV Index Today

Day Summary

The UV index in St. Johnsbury, United States Flag of United States will reach a high of 3.5 today. This means a moderate level of sun exposure. See our tips below to stay safe!

Last checked: 2025-10-09

Hourly Forecast Chart

Today's Safety Tips

The sun is a bit strong. Find some shade during midday. Wear a hat, sunglasses, and use SPF 30+ sunscreen if you'll be outside for a while.

St. Johnsbury's UV Index

The UV index in St. Johnsbury is generally moderate to low, with values rising during summer months, often reaching around 5 to 7, and dropping to 1 to 2 in winter.

Weather Seasons

UV index

St. Johnsbury experiences cold, snowy winters and warm, humid summers. Spring and fall bring mild temperatures and moderate rainfall, with snow common from late November through March.

St. Johnsbury's Climate

Compared to other parts of the northeastern United States, St. Johnsbury is colder in winter due to its northern location and higher elevation. It has more snow than many southern areas but similar UV levels to nearby Vermont towns.

Hourly UV Index Trend

See the UV index hour by hour for St. Johnsbury. When the level is high, it's smart to find some shade.

Disclaimer

* The information on this page about the UV index in St. Johnsbury is for educational purposes only. It is not a substitute for professional medical advice. Always consult a doctor for any health concerns.