Bonus List

ELECTRIC BLANKETS IN SUMMER: U.S. TOWNS WITH THE COLDEST AVERAGE JULY NIGHTS
Interior Western United States high-elevation mountain valleys have the coldest nights in summer relative to the rest of the United States (outside of northern Alaska, of course). This is because of the dry air that is typically in place (dew is less likely to condense and release heat into the air), the low wind speeds that allow the daytime heat to radiate out to space and the drainage of cold air into the valleys. All towns listed here have at least 2,500 people, and some places have their official temperature readings just outside of the city limits (like with South Lake Tahoe, California--the airport is in a valley just south of town and also away from the moderating effects of the lake).

CITY, STATE

1. Barrow, Alaska
2. Jackson, Wyoming
2. Leadville, Colorado
2. South Lake Tahoe, California
2. Vail, Colorado
6. Steamboat Springs, Colorado
7. Gunnison, Colorado
8. Ketchum, Idaho
9. Aspen, Colorado
9. Evanston, Wyoming

AVERAGE JULY
LOW TEMPERATURE
34
41
41
41
41
41
42
43
44
44

Source of Most Data: Western Regional Climate Center. http://www.wrcc.dri.edu

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