Best time to visit De Smet, SD

A month-by-month travel weather guide based on NOAA 30-year climate normals.

The most comfortable travel window in De Smet runs from May through September — 5 months of pleasant temperatures and modest rainfall.

January Cold
High
23.2°F
Low
4.9°F
Precip
0.60 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 9h 1m

February Cold
High
28.5°F
Low
9.2°F
Precip
0.88 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 10h 13m

March Cold
High
40.6°F
Low
20.9°F
Precip
1.36 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 11h 41m

April Cool
High
55.0°F
Low
33.2°F
Precip
2.30 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 13h 15m

May Good
High
67.1°F
Low
45.4°F
Precip
3.32 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 36m

June Good
High
76.9°F
Low
56.1°F
Precip
4.06 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 15h 17m

July Good
High
81.5°F
Low
61.0°F
Precip
3.88 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 15h 2m

August Excellent
High
79.1°F
Low
58.9°F
Precip
3.07 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 13h 51m

September Excellent
High
71.6°F
Low
50.1°F
Precip
2.78 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 12h 17m

October Cool
High
56.9°F
Low
35.9°F
Precip
1.98 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 10h 44m

November Cold
High
40.7°F
Low
22.0°F
Precip
0.96 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 9h 21m

December Cold
High
27.7°F
Low
10.3°F
Precip
0.74 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 8h 40m

Looking for similar climates? See De Smet's climate twins. Or jump straight to the full climate profile.