Least humid places in the US in August
Ranked by the lowest mean dew point in August (hourly normals; cities with an hourly station only). First: Reno, NV (37°F), of 343 cities.
| Rank | City | Mean dew point | High | Wet days |
|---|---|---|---|---|
| 1 | Reno, NV | 37°F | 92°F | 2 |
| 2 | South Lake Tahoe, CA | 39°F | 80°F | 2 |
| 3 | Incline Village, NV | 39°F | 77°F | 2 |
| 4 | Lancaster, CA | 41°F | 98°F | 0 |
| 5 | Palmdale, CA | 41°F | 98°F | 0 |
| 6 | Victorville, CA | 41°F | 97°F | 1 |
| 7 | Steamboat Springs, CO | 42°F | 82°F | 12 |
| 8 | Boise, ID | 42°F | 91°F | 2 |
| 9 | Great Falls, MT | 42°F | 83°F | 7 |
| 10 | Casper, WY | 42°F | 87°F | 6 |
| 11 | Missoula, MT | 43°F | 84°F | 6 |
| 12 | Las Vegas, NV | 44°F | 103°F | 2 |
| 13 | Page, AZ | 45°F | 95°F | 5 |
| 14 | Billings, MT | 45°F | 85°F | 6 |
| 15 | Provo, UT | 45°F | 93°F | 5 |
| 16 | Salt Lake City, UT | 45°F | 92°F | 5 |
| 17 | Flagstaff, AZ | 45°F | 79°F | 13 |
| 18 | Grand Canyon Village, AZ | 45°F | 83°F | 11 |
| 19 | Whitefish, MT | 45°F | 82°F | 6 |
| 20 | Cheyenne, WY | 45°F | 82°F | 10 |
| 21 | Gillette, WY | 45°F | 85°F | 6 |
| 22 | Spokane, WA | 46°F | 84°F | 3 |
| 23 | Leavenworth, WA | 46°F | 87°F | 2 |
| 24 | Keystone, SD | 46°F | 78°F | 9 |
| 25 | Fairbanks, AK | 47°F | 66°F | 14 |
Which states lead
California (4 of the top 25), Montana (4 of the top 25), Nevada (3 of the top 25), then 8 more states. The top 25 range from 37°F to 47°F; the median across all 343 cities is 62°F.
The other end: most humid in August
Least humid places through the year
| Month | First place | Mean dew point |
|---|---|---|
| January | Fairbanks, AK | -7°F |
| February | Fairbanks, AK | -3°F |
| March | Fairbanks, AK | 2°F |
| April | Fairbanks, AK | 19°F |
| May | Flagstaff, AZ | 24°F |
| June | Flagstaff, AZ | 26°F |
| July | Reno, NV | 39°F |
| August | Reno, NV | 37°F |
| September | Reno, NV | 34°F |
| October | Fairbanks, AK | 20°F |
| November | Fairbanks, AK | 1°F |
| December | Fairbanks, AK | -7°F |
343 cities with data for this measure. Folded suburbs share their lead city's values and are not listed separately. Methodology.