Best year time to visit Blackrock Hills

General weather information about Blackrock Hills

Average annual temperature is 14.0 °C

Absolute maximum temperature: 37.2 °C

Absolute minimum temperature: -9.8 °C

Number of sunny days: 180 days

Number of rainy days: 184 days

Number of snow days: 1 day

* Weather data for Blackrock Hills United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	17.3	22.7	24.9	29.6	29.9	34.2	37.2	33.6	36.6	27.9	23.5	15.8
Average daytime temperature (°C)	9.4	11.5	12.6	21.5	22.9	27.5	31.4	30.1	26.3	20.7	13.1	10.0
Average temperature (°C)	5.1	5.9	6.6	14.6	16.4	21.1	25.3	24.2	20.8	14.9	7.2	5.4
Average night temperature (°C)	1.7	1.5	1.6	8.8	10.2	15.4	20.5	19.4	16.1	10.3	2.7	1.6
Absolute minimum temperature (°C)	-3.3	-9.8	-5.3	0.3	4.5	10.3	18.3	15.3	10.3	4.8	-5.9	-4.5

The best time to visit Blackrock Hills during the most sunny months:

The largest precipitation sum in Blackrock Hills is at

April — 109(mm)

June — 139(mm)

July — 106(mm)

September — 117(mm)

December — 150(mm)

When is the best time to visit Blackrock Hills?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Blackrock Hills.

What is the weather like in Blackrock Hills?

See average temperature, rainfall and daylight hours for Blackrock Hills by month in the table above.

How many sunny days does Blackrock Hills have?

The monthly weather statistics above show sunshine and rainfall patterns for Blackrock Hills throughout the year.