Maximum Daily UV Index Report for Thornton, Colorado

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Data last updated 10/4/2022 03:15 AM.

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Thornton Ultraviolet (UV) Index
Day	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1	0.7	1.7	1.7	4.9	6.7	7.4	9.3	8.3	7.3	4.9	---	---
2	1.4	0.6	0.6	6.0	4.6	9.0	9.3	8.4	6.5	4.9	---	---
3	1.6	1.0	1.0	4.6	8.4	8.7	9.9	8.6	6.4	4.5	---	---
4	1.2	2.9	2.9	5.0	7.0	8.4	9.6	7.8	6.7	0.0	---	---
5	1.2	2.7	2.7	6.2	7.9	9.3	10.0	7.6	6.3	---	---	---
6	0.5	2.5	2.5	5.1	8.4	10.4	9.3	7.8	5.2	---	---	---
7	1.8	3.0	3.0	5.4	8.9	9.3	9.5	8.5	5.5	---	---	---
8	1.4	2.2	3.3	5.4	7.6	8.8	9.0	8.1	6.4	---	---	---
9	1.5	2.2	3.1	7.0	7.7	8.7	9.1	7.8	3.6	---	---	---
10	1.3	2.6	3.9	5.9	8.5	9.6	9.8	7.8	1.6	---	---	---
11	1.4	1.6	3.6	5.4	8.4	8.6	9.9	7.8	6.0	---	---	---
12	1.4	2.5	4.3	6.1	7.2	8.4	8.3	7.7	5.9	---	---	---
13	1.4	2.9	4.2	5.2	7.3	5.7	8.8	7.4	6.1	---	---	---
14	1.5	3.1	4.3	5.8	7.4	9.0	9.0	8.0	5.5	---	---	---
15	1.6	2.7	4.7	6.4	8.0	8.9	9.9	8.1	6.2	---	---	---
16	1.7	1.3	4.0	7.0	7.7	9.2	9.0	6.2	6.9	---	---	---
17	1.2	0.9	4.3	6.7	8.4	8.5	8.9	7.6	6.4	---	---	---
18	0.9	3.2	4.6	6.9	7.4	9.7	8.4	7.3	6.3	---	---	---
19	0.6	3.5	4.5	7.2	8.0	9.8	8.9	6.9	6.1	---	---	---
20	1.4	3.4	5.0	6.8	2.4	9.2	9.4	7.8	6.4	---	---	---
21	0.9	2.6	2.0	6.7	7.5	9.7	9.3	7.2	2.1	---	---	---
22	1.7	1.8	5.0	7.1	7.3	6.9	8.1	6.9	4.0	---	---	---
23	1.8	2.9	4.9	4.9	7.5	10.6	8.1	7.2	5.8	---	---	---
24	2.0	3.6	6.0	7.1	4.6	9.9	8.6	7.0	5.2	---	---	---
25	1.3	3.7	5.5	6.6	8.2	9.2	8.2	7.2	5.4	---	---	---
26	2.1	3.6	5.9	7.6	8.7	6.2	8.6	8.8	5.3	---	---	---
27	0.9	3.9	5.3	7.1	9.0	8.7	8.4	7.1	5.4	---	---	---
28	2.0	3.6	6.1	7.1	8.8	8.6	7.7	6.9	5.4	---	---	---
29	1.9		2.5	7.2	7.9	9.4	8.5	7.1	5.2	---	---	---
30	1.7		4.8	6.5	7.0	7.1	8.4	6.9	5.8	---	---	---
31	2.1		5.5		8.7		7.8	6.7		---		---

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Highest High	2.1	3.9	6.1	7.6	9.0	10.6	10.0	8.8	7.3	4.9	---	---
Average High	1.4	2.6	3.9	6.2	7.5	8.8	8.9	7.6	5.6	3.6	---	---
Lowest High	0.5	0.6	0.6	4.6	2.4	5.7	7.7	6.2	1.6	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.