Best time to visit Spearfish, SD

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

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

January Cold
High
35.9°F
Low
15.7°F
Precip
0.60 in

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

Daylight ≈ 9h 0m

February Cold
High
36.9°F
Low
16.3°F
Precip
0.91 in

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

Daylight ≈ 10h 13m

March Cool
High
45.8°F
Low
24.2°F
Precip
1.19 in

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

Daylight ≈ 11h 41m

April Cool
High
54.9°F
Low
32.0°F
Precip
2.23 in

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

Daylight ≈ 13h 15m

May Good
High
64.3°F
Low
41.8°F
Precip
3.72 in

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

Daylight ≈ 14h 36m

June Excellent
High
75.3°F
Low
51.3°F
Precip
3.51 in

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

Daylight ≈ 15h 18m

July Good
High
83.6°F
Low
57.6°F
Precip
2.35 in

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

Daylight ≈ 15h 2m

August Good
High
82.9°F
Low
56.1°F
Precip
1.88 in

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

Daylight ≈ 13h 52m

September Good
High
74.0°F
Low
47.6°F
Precip
1.56 in

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

Daylight ≈ 12h 17m

October Cool
High
58.1°F
Low
35.4°F
Precip
2.04 in

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

Daylight ≈ 10h 43m

November Cool
High
45.9°F
Low
25.6°F
Precip
0.70 in

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

Daylight ≈ 9h 20m

December Cold
High
37.2°F
Low
17.5°F
Precip
0.72 in

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

Daylight ≈ 8h 39m

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