Climate and monthly weather forecast
Blackrock Hills, MD

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Weather in January

January, the same as December, is an icy winter month in Blackrock Hills, Maryland, with an average temperature varying between 38.8°F (3.8°C) and 25.2°F (-3.8°C). January, having an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 25.2°F (-3.8°C), is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in Blackrock Hills, Maryland, with an average temperature ranging between min 27.9°F (-2.3°C) and max 43°F (6.1°C). Blackrock Hills, Maryland, greets February with an average high-temperature of a chilly 43°F (6.1°C), marking a slight deviation from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Blackrock Hills, is a fresh month, with an average temperature fluctuating between 35.2°F (1.8°C) and 51.3°F (10.7°C). As February gives way to March, the average high-temperature displays a slight ascent, adjusting from a chilly 43°F (6.1°C) to a cool 51.3°F (10.7°C). Weather in March »

Weather in April

April in Blackrock Hills, Maryland, is an enjoyable spring month, with an average temperature varying between 63.5°F (17.5°C) and 45°F (7.2°C). Blackrock Hills's transition into April brings a rise in the average high-temperature, moving from a fresh 51.3°F (10.7°C) in March to a refreshing 63.5°F (17.5°C). Weather in April »

Weather in May

May, the last month of the spring in Blackrock Hills, is a moderately hot month, with an average temperature ranging between max 73.6°F (23.1°C) and min 54.9°F (12.7°C). As Blackrock Hills transitions into May, the average high-temperature shows a change, moving from a refreshing 63.5°F (17.5°C) in April to a moderately hot 73.6°F (23.1°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Blackrock Hills, Maryland, with an average temperature ranging between max 81.7°F (27.6°C) and min 62.2°F (16.8°C). The embrace of June brings a minor uplift in the average high-temperature, shifting from a warm 73.6°F (23.1°C) in May to a still moderately hot 81.7°F (27.6°C). Weather in June »

Weather in July

July is a hot summer month in Blackrock Hills, Maryland, with an average temperature varying between 66.9°F (19.4°C) and 86.5°F (30.3°C). In Blackrock Hills, the average temperatures in July are the highest, with a peak at 86.5°F (30.3°C) and a low of 66.9°F (19.4°C). For most parts of July, the heat index is appraised at a very hot 96.8°F (36°C). Weather in July »

Weather in August

August, the last month of the summer in Blackrock Hills, is also a moderately hot month, with an average temperature varying between 84.6°F (29.2°C) and 65.5°F (18.6°C). The beginning of August reveals an average high-temperature of a warm 84.6°F (29.2°C), showing minimal deviation from the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Blackrock Hills, is also a moderately hot month, with an average temperature varying between 77.5°F (25.3°C) and 59.2°F (15.1°C). Blackrock Hills experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from 84.6°F (29.2°C) in August to a still warm 77.5°F (25.3°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Blackrock Hills, Maryland, with temperature in the range of an average high of 65.5°F (18.6°C) and an average low of 48.9°F (9.4°C). The commencement of October indicates a shift in the average high-temperature, receding from September's warm 77.5°F (25.3°C) to an enjoyable 65.5°F (18.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Blackrock Hills, Maryland, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 53.1°F (11.7°C). With November's onset, the average high-temperature recedes from October's refreshing 65.5°F (18.6°C) to a fresh 53.1°F (11.7°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Blackrock Hills, Maryland, with an average temperature fluctuating between 31.8°F (-0.1°C) and 44.2°F (6.8°C). In December, the meteorological conditions change slightly, with the average high-temperature moving from a fresh 53.1°F (11.7°C) in November to a frosty 44.2°F (6.8°C). Weather in December »
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January is the month when Blackrock Hills experiences its coldest temperatures, averaging a high of 38.8°F (3.8°C) and a low of 25.2°F (-3.8°C).

What is the driest month?

The months with the least rainfall are January and February Rain falls for 9.5 days and accumulates 1.97" (50mm) of rain.

How much does it rain?

In Blackrock Hills, during the entire year, the rain falls for 159.4 days and collects up to 30.71" (780mm) of precipitation.

When does it snow?

Months with snowfall are January through May, November and December.

How many days does it snow?

Throughout the year, in Blackrock Hills, there are 19.1 snowfall days, and 10.04" (255mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 5h of sunshine, January has the least sunshine of the year.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the snowiest month in Blackrock Hills?

March is the month with the most snowfall. Snow falls for 3.6 days and accumulates 2.83" (72mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the month with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

When it does not snow?

In Blackrock Hills, snow does not fall in June through October.

When are the longest days?

The month with the longest days is June, with an average of 14h and 54min of daylight.

What part of the year is the hottest?

The temperatures reach their highest averages in July, with highs of 86.5°F (30.3°C) and lows of 66.9°F (19.4°C).

What is the least humid month?

The least humid month is July, with an average relative humidity of 72%.

What month has the most sunshine?

July has the most sunshine of the year, with an average of 10.9h of sunshine.

What is the rainiest month?

The month with the most rainfall is August, when the rain falls for 16.2 days and typically aggregates up to 3.78" (96mm) of precipitation.

What are the most humid months?

The months with the highest humidity are October and December, with an average relative humidity of 78%.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

Average temperature
Blackrock Hills, MD

Average temperature - Blackrock Hills, MD

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure
Blackrock Hills, MD

Average pressure - Blackrock Hills, MD

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed
Blackrock Hills, MD

Average wind speed - Blackrock Hills, MD

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity
Blackrock Hills, MD

Average humidity - Blackrock Hills, MD

The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (72%).

Average rainfall
Blackrock Hills, MD

Average rainfall - Blackrock Hills, MD

The wettest month (with the highest rainfall) is August (3.78").
The driest months (with the least rainfall) are January and February (1.97").

Average rainfall days
Blackrock Hills, MD

Average rainfall days - Blackrock Hills, MD

The month with the highest number of rainy days is May (17.5 days).
The months with the least rainy days are January and November (9.5 days).

Average snowfall
Blackrock Hills, MD

Average snowfall - Blackrock Hills, MD

The month with the highest snowfall is March (2.83").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Blackrock Hills, MD

Average snowfall days - Blackrock Hills, MD

The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight / Average sunshine
Blackrock Hills, MD

Average daylight / Average sunshine - Blackrock Hills, MD

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days
Blackrock Hills, MD

Average sunshine days - Blackrock Hills, MD

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (11.3 days).

Average UV index
Blackrock Hills, MD

Average UV index - Blackrock Hills, MD

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average visibility
Blackrock Hills, MD

Average visibility - Blackrock Hills, MD

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Blackrock Hills, Maryland, USA

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