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Spearfish
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Best time to visit Spearfish
Data source：Meteostat
Last updated：2025-09
Weather in Spearfish throughout the year
- Spring (March–May): Avg. 0.1–12.4°C, cold climate gradually warming, rainfall gradually increasing, with the most rainfall in May. Common activities: Hiking (weather permitting), sightseeing (after snowmelt). Recommended clothing: Warm jacket, sweater, waterproof jacket.
- Summer (June–August): Avg. 17.9–22.2°C, warm climate, occasional rainfall. Common activities: Outdoor picnics, hiking, camping. Recommended clothing: T-shirt, light pants, light jacket.
- Autumn (September–November): Avg. 9.3–18.4°C, cool climate, decreasing rainfall. Common activities: Viewing autumn leaves (if the area has deciduous trees), hiking. Recommended clothing: Long-sleeved shirt, light jacket.
- Winter (December–February): Avg. -2.7–-1.1°C, cold climate, possibility of snowfall or rainfall. Common activities: Skiing, snowshoeing (if sufficient snow). Recommended clothing: Heavy coat, hat, scarf, gloves.
Weather in Spearfish
Annual average temperature: approx. 8.7°C / Annual rainfall: approx. 647 mm / Summer humidity: 60%–70% / Rainiest month: May
Spearfish weather by month
Month
Temperature (°C)
Rainfall (mm)
January
-2.7°C
25.2
February
-1.5°C
30.3
March
0.1°C
29.6
April
5.5°C
96.1
May
12.4°C
133.2
June
17.9°C
89.4
July
22.2°C
38.5
August
21.7°C
69.7
September
18.4°C
44.5
October
9.3°C
35.3
November
1.9°C
14.7
December
-1.1°C
41.4
7-day weather forecast for Spearfish
11/7
Saturday
Sunny
17.4°C/5.6°C
11/8
Sunday
Sunny
21.3°C/5.5°C
11/9
Monday
Overcast
14.8°C/5°C
11/10
Tuesday
Overcast
15.9°C/5.1°C
11/11
Wednesday
Sunny
13.5°C/1.1°C
11/12
Thursday
Sunny
15.5°C/5.3°C
11/13
Friday
Partly Cloudy
18.6°C/5.7°C
