Last updated: June 2, 2025
The UV Index is an essential tool for residents and visitors in Snoqualmie, United States, helping to gauge the strength of ultraviolet radiation from the sun. Understanding UV levels is crucial for preventing sunburn and protecting skin health, as exposure to high UV levels can lead to long-term damage. Nestled in a Cfb climate zone, Snoqualmie experiences varying UV exposure throughout the day, with peak levels reaching 9 around midday. This makes it important to stay informed and take protective measures, especially during the warmer months when outdoor activities are at their most enjoyable.
The UV Index throughout the day showed a pronounced peak around midday, starting with a maximum reading of 1 at 7:00 AM. As the sun rose, the index climbed steadily, reaching 9 between 12:00 PM and 2:00 PM—the highest levels of the day, indicating a strong need for sun protection. The intensity began to taper off after 3:00 PM, with readings of 8 at 3:00 PM, dropping to 6 by 4:00 PM, and further decreasing to 1 by 7:00 PM. Overall, the UVI highlights the importance of sun safety during the peak hours, especially between 11:00 AM and 2:00 PM.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, impacting sun exposure levels and potential risk for skin damage. The high-risk months for UV exposure peak during late spring and summer, specifically from May to August, when the index consistently reaches 9, categorized as very high, with a minimal safe burn time of just 15 minutes. As the year progresses, March and April also present high levels, with indices of 6 and 7, indicating heightened care is needed. Conversely, the winter months of January and December offer lower UV levels, classified as low, allowing for more extended sun exposure without significant risk. To minimize sun damage, it is recommended that visitors and residents during the high-risk months wear protective clothing, apply sunscreen liberally, and seek shade when necessary, especially during midday hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Snoqualmie | 2 | 3 | 6 | 7 | 9 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |
| Chicago UVI | 3 | 4 | 6 | 8 | 9 | 10 | 10 | 9 | 8 | 6 | 4 | 2 |
| Brooklyn UVI | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
| New York City UVI | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
| Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |