Summer Road Trips in South Dakota
Routes
30
Avg Distance
424 mi
Avg Drive
7h 11m
Destinations
16
Summer in South Dakota means long days for exploring its 30 routes, averaging 424 miles and 432 minutes. These drives offer a drive score range of 8, with terrain that's gently rolling and max elevations reaching up to 3,426 ft. With excellent EV coverage on some routes, you're set for a great summer road trip across the state.
Fuel snapshot for this state
Regular
$3.94/gal
Diesel: $5.60/gal
Typical trip cost
$62–$75
One-way, ~424 mi avg @ 25.4 MPG
CO₂ per trip
~148 kg
ICE vehicle, one-way average
Source: US Energy Information Administration • week of 2026-08-31
Climate through the year: South Dakota
South Dakota peaks at around 85°F in Jul and cools to 27°F / 9°F in Jan. Wettest month is Jun at ~4.2 in of rain. Table highlights Summer months.
| Month | High °F | Low °F | Rain in | Snow in |
|---|---|---|---|---|
| Jan | 27 | 9 | 0.6 | 8 |
| Feb | 32 | 13 | 0.8 | 8.6 |
| Mar | 45 | 24 | 1.6 | 7.2 |
| Apr | 59 | 36 | 3 | 5.1 |
| May | 71 | 48 | 3.9 | 0.1 |
| Jun peak | 81 | 59 | 4.2 | — |
| Jul peak | 85 | 63 | 3.3 | — |
| Aug peak | 83 | 61 | 3.3 | — |
| Sep | 76 | 52 | 2.7 | — |
| Oct | 61 | 38 | 2.4 | 1.4 |
| Nov | 45 | 25 | 1.2 | 6.2 |
| Dec | 32 | 13 | 0.8 | 8.7 |
Source: NOAA NCEI Monthly Climate Normals, 1991–2020 reference period. Sampled at the major-airport station for SD — microclimates along specific routes can vary significantly.
Planning Tips
- Carry extra water — summer heat in the car and at rest stops dehydrates faster than you think.
- Start drives early or late to avoid peak afternoon heat, especially through desert or plains stretches.
- Check your tire pressure before long summer drives — hot pavement increases blowout risk with underinflated tires.
Frequently Asked Questions
Summer Routes
Editor's pick
Milbank, SD → Sturgis, SD
This route stands out with its excellent EV coverage and 19 DC fast chargers, covering 483 miles through gently rolling terrain up to 3,426 ft.
Editor's pick
Spearfish, SD → North Sioux City, SD
Boasting a drive score of 8 and a maximum elevation of 3,643 ft, this 467.6-mile trip traverses gently rolling terrain.
Editor's pick
Milbank, SD → Rapid City, SD
With 458.8 miles and a drive score of 8, this route offers a journey through gently rolling terrain with a maximum elevation of 3,243 ft.
Spearfish, SD → Watertown, SD
Through: Farmer
Lemmon, SD → Yankton, SD
Watertown, SD → Lead, SD
Watertown, SD → Custer, SD
Through: Crazy Horse
Deadwood, SD → Watertown, SD
Through: Farmer
Jefferson, SD → Sturgis, SD
Hill City, SD → Watertown, SD
Through: Farmer
Watertown, SD → Sturgis, SD
Porcupine, SD → Watertown, SD
Through: Farmer
Rapid City, SD → Webster, SD
Through: Farmer
Belle Fourche, SD → Yankton, SD
Rapid City, SD → Jefferson, SD
Watertown, SD → Colonial Pine Hills, SD
Yankton, SD → North Spearfish, SD
Britton, SD → Rapid City, SD
Belle Fourche, SD → Harrisburg, SD
Watertown, SD → Rapid City, SD
Box Elder, SD → Webster, SD
Through: Farmer
Yankton, SD → Lead, SD
Tea, SD → Belle Fourche, SD
Garretson, SD → Spearfish, SD
Webster, SD → Spearfish, SD
Sioux Falls, SD → Lemmon, SD
Through: Milbank
Brandon, SD → Belle Fourche, SD
Yankton, SD → Deadwood, SD
Spearfish, SD → Harrisburg, SD
Brandon, SD → North Spearfish, SD