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Spearfish
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Spearfish Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Spearfish year round climate
- 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.
Spearfish climatological average
Annual average temperature: approx. 8.7°C / Annual rainfall: approx. 647 mm / Summer humidity: 60%–70% / Rainiest month: May
Spearfish monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (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
Spearfish weather for the next seven days
12/15
Monday
Sunny
19.7°C/7.3°C
12/16
Tuesday
Cloudy
12.5°C/2.5°C
12/17
Wednesday
Heavy rain
7.9°C/-1.2°C
12/18
Thursday
Cloudy
2°C/-3.7°C
12/19
Friday
Patchy rain nearby
12.1°C/-1.9°C
12/20
Saturday
Moderate or heavy snow showers
0.3°C/-6.4°C
12/21
Sunday
Partly Cloudy
4.9°C/-5.7°C
