Climate and monthly weather forecastBlackrock Hills, MD
Climate and monthly weather forecast
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
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
The months with the least rainfall are January and February Rain falls for 9.5 days and accumulates 1.97" (50mm) of rain.
In Blackrock Hills, during the entire year, the rain falls for 159.4 days and collects up to 30.71" (780mm) of precipitation.
Months with snowfall are January through May, November and December.
Throughout the year, in Blackrock Hills, there are 19.1 snowfall days, and 10.04" (255mm) of snow is accumulated.
With an average of 5h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
March is the month with the most snowfall. Snow falls for 3.6 days and accumulates 2.83" (72mm) of snow.
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.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
In Blackrock Hills, snow does not fall in June through October.
The month with the longest days is June, with an average of 14h and 54min of daylight.
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).
The least humid month is July, with an average relative humidity of 72%.
July has the most sunshine of the year, with an average of 10.9h of sunshine.
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.
The months with the highest humidity are October and December, with an average relative humidity of 78%.
December has the shortest days of the year, with an average of 9h and 30min of daylight.
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 in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
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 in January:
7.6mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.8mph - Average wind speed in April:
7.7mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.4mph - Average wind speed in October:
6.4mph - Average wind speed in November:
6.7mph - Average wind speed in December:
7mph
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
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 in January:
1.97" - Average rainfall in February:
1.97" - Average rainfall in March:
2.32" - Average rainfall in April:
2.6" - Average rainfall in May:
3.15" - Average rainfall in June:
2.48"
- Average rainfall in July:
2.99" - Average rainfall in August:
3.78" - Average rainfall in September:
2.17" - Average rainfall in October:
2.48" - Average rainfall in November:
2.44" - Average rainfall in December:
2.36"
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 in January:
9.5 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
16.2 days - Average rainfall days in September:
14.2 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
10.5 days
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 in January:
2.68" - Average snowfall in February:
2.24" - Average snowfall in March:
2.83" - Average snowfall in April:
0.35" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
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 in January:
5.8 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
3.6 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
3 days
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 in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 30min
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).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 54min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 12min
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 in January:
17.7 days - Average sunshine days in February:
15 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
12.3 days - Average sunshine days in September:
14.1 days - Average sunshine days in October:
16.7 days - Average sunshine days in November:
19 days - Average sunshine days in December:
18.2 days
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
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 cloud cover
Blackrock Hills, MD
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
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).
