Maximum Daily UV Index Report for Thornton, Colorado

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Data last updated 4/2/2023 00:30 AM.

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Thornton Ultraviolet (UV) Index
Day	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1	1.6	2.4	2.2	5.3	---	---	---	---	---	---	---	---
2	0.0	2.6	3.1	0.0	---	---	---	---	---	---	---	---
3	0.9	2.5	3.8	---	---	---	---	---	---	---	---	---
4	1.3	2.2	4.0	---	---	---	---	---	---	---	---	---
5	1.3	2.6	3.7	---	---	---	---	---	---	---	---	---
6	1.4	1.5	4.1	---	---	---	---	---	---	---	---	---
7	1.4	2.3	2.9	---	---	---	---	---	---	---	---	---
8	1.8	2.0	4.2	---	---	---	---	---	---	---	---	---
9	1.4	2.5	3.9	---	---	---	---	---	---	---	---	---
10	1.4	2.1	4.6	---	---	---	---	---	---	---	---	---
11	0.7	2.7	4.8	---	---	---	---	---	---	---	---	---
12	1.4	2.6	4.7	---	---	---	---	---	---	---	---	---
13	1.5	2.6	4.0	---	---	---	---	---	---	---	---	---
14	1.2	2.5	4.4	---	---	---	---	---	---	---	---	---
15	1.3	0.6	3.9	---	---	---	---	---	---	---	---	---
16	1.4	2.2	4.1	---	---	---	---	---	---	---	---	---
17	1.3	3.4	4.3	---	---	---	---	---	---	---	---	---
18	1.2	2.3	4.4	---	---	---	---	---	---	---	---	---
19	1.6	2.7	4.6	---	---	---	---	---	---	---	---	---
20	1.7	2.2	4.5	---	---	---	---	---	---	---	---	---
21	1.5	3.5	4.8	---	---	---	---	---	---	---	---	---
22	2.0	1.9	6.2	---	---	---	---	---	---	---	---	---
23	2.0	1.5	3.8	---	---	---	---	---	---	---	---	---
24	1.8	3.8	3.9	---	---	---	---	---	---	---	---	---
25	1.7	3.6	4.7	---	---	---	---	---	---	---	---	---
26	1.9	2.9	4.2	---	---	---	---	---	---	---	---	---
27	1.5	4.0	3.2	---	---	---	---	---	---	---	---	---
28	2.0	3.6	5.0	---	---	---	---	---	---	---	---	---
29	1.4		5.3	---	---	---	---	---	---	---	---	---
30	2.1		4.4	---	---	---	---	---	---	---	---	---
31	2.5		4.7		---		---	---		---		---

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Highest High	2.5	4.0	6.2	5.3	---	---	---	---	---	---	---	---
Average High	1.5	2.5	4.2	2.6	---	---	---	---	---	---	---	---
Lowest High	0.0	0.6	2.2	0.0	---	---	---	---	---	---	---	---

UV Level	UV Index	Description

Low	0-2	No danger to the average person.
Moderate	3-5	Little risk of harm from unprotected sun exposure.
High	6-7	High risk of harm from unprotected sun exposure.
Very High	8-10	Very high risk of harm from unprotected sun exposure.
Extreme	11+	Extreme risk of harm from unprotected sun exposure.

Script Developed by Murry Conarroe of Wildwood Weather.