Coolest places in the US in September
Ranked by the lowest normal daily high in September. First: Denali Park, AK (51°F), of 378 cities.
| Rank | City | Normal high | Low | Wet days |
|---|---|---|---|---|
| 1 | Denali Park, AK | 51°F | 31°F | 13 |
| 2 | Fairbanks, AK | 55°F | 36°F | 11 |
| 3 | Anchorage, AK | 56°F | 43°F | 15 |
| 4 | Seward, AK | 56°F | 43°F | 17 |
| 5 | Juneau, AK | 56°F | 44°F | 22 |
| 6 | Skagway, AK | 57°F | 46°F | 17 |
| 7 | Sitka, AK | 58°F | 49°F | 22 |
| 8 | Ketchikan, AK | 59°F | 48°F | 20 |
| 9 | Breckenridge, CO | 62°F | 32°F | 10 |
| 10 | Lake Placid, NY | 66°F | 45°F | 12 |
| 11 | Port Angeles, WA | 66°F | 47°F | 9 |
| 12 | Vail, CO | 67°F | 34°F | 9 |
| 13 | Duluth, MN | 67°F | 50°F | 10 |
| 14 | Aspen, CO | 67°F | 40°F | 10 |
| 15 | Cannon Beach, OR | 68°F | 51°F | 9 |
| 16 | West Yellowstone, MT | 68°F | 37°F | 7 |
| 17 | Sister Bay, WI | 68°F | 51°F | 10 |
| 18 | Telluride, CO | 68°F | 34°F | 11 |
| 19 | Big Sky, MT | 68°F | 33°F | 10 |
| 20 | Friday Harbor, WA | 68°F | 48°F | 12 |
| 21 | Jackson, WY | 68°F | 33°F | 8 |
| 22 | Sun Valley, ID | 69°F | 36°F | 4 |
| 23 | Kennebunkport, ME | 69°F | 49°F | 10 |
| 24 | Keystone, SD | 69°F | 40°F | 7 |
| 25 | Mackinac Island, MI | 70°F | 50°F | 13 |
Which states lead
Alaska (8 of the top 25), Colorado (4 of the top 25), Washington (2 of the top 25), then 10 more states. The top 25 range from 51°F to 70°F; the median across all 378 cities is 81°F.
The other end: warmest in September
- Furnace Creek, CA108°F
- Palm Springs, CA102°F
- Yuma, AZ101°F
- San Tan Valley, AZ101°F
- Phoenix, AZ100°F
Coolest places through the year
| Month | First place | Normal high |
|---|---|---|
| January | Fairbanks, AK | 1°F |
| February | Fairbanks, AK | 12°F |
| March | Fairbanks, AK | 25°F |
| April | Denali Park, AK | 41°F |
| May | Sitka, AK | 53°F |
| June | Sitka, AK | 58°F |
| July | Sitka, AK | 60°F |
| August | Denali Park, AK | 61°F |
| September | Denali Park, AK | 51°F |
| October | Denali Park, AK | 34°F |
| November | Fairbanks, AK | 12°F |
| December | Fairbanks, AK | 4°F |
378 cities with data for this measure. Folded suburbs share their lead city's values and are not listed separately. Methodology.